HVAC in Wisconsin: 45 Top Proes Ranked (2026)
45 verified hvac businesses in Wisconsin, ranked by ServiceAgent Score across 19 cities. Real reviews, transparent methodology, no pay-to-rank.
TL;DR
- 45 verified hvac businesses cataloged across 19 cities in Wisconsin.
- Top pick: Third Coast HVAC, AC & Furnace Repair (Brookfield) with ServiceAgent Score 8.8/10.
- 25 elite-tier providers (ServiceAgent Score ≥ 8.5/10) in Wisconsin.
- Typical hvac project cost: $150 - $4,200 - $385 median for a single-system repair, $7,400 median for a full residential replacement.
- 0 hvac providers offer 24/7 or emergency service across Wisconsin.
- For a tighter list, drill into your city below - we have a city-by-city ranking for each metro.
Why trust this list
Finding a trustworthy hvac pro in Wisconsin is harder than it should be - reviews are gamed, marketing claims are loud, and licensed-and-insured isn't visible from a Google search.
We've cataloged every active hvac provider in Wisconsin (45 total across 19 cities) and ranked them by composite ServiceAgent Score - a weighted blend of Trust (data quality + verification + review-volume credibility) and Recommendation (rating + review volume, Bayesian-shrunk).
Below: the top 25 hvac providers in Wisconsin, transparent methodology, cost benchmarks for the trade, and the red flags worth walking away from. Drill into your city in the related pages section for a tighter local ranking.
At-a-glance: top 11 hvac pros in Wisconsin
Compare the top picks side-by-side. Full reviews of each below.
SA Score = ServiceAgent composite (0–10). Tap a row number to jump to the full review.
How we chose these
We rank every active provider in every active hvac business in Wisconsin by a composite ServiceAgent Score (0-10) made up of two components:
Trust Score (40%) - rewards owner-verified status, completeness of contact info, presence of hours/coordinates/photos, and review-volume credibility.
Recommendation Score (60%) - Google rating Bayesian-shrunk toward the category mean using a 25-review prior so high-volume providers can't be dethroned by 5-star outliers.
Composite ServiceAgent Score = 0.6 × Recommendation + 0.4 × Trust. We re-compute as new reviews land and as providers claim their listings. The "Last updated" date at the top of this page reflects the most recent data refresh.
What we deliberately don't do: pay-to-rank, sponsored slots that masquerade as editorial picks, or hide our formula. Sponsored slots (if/when introduced) will be clearly labeled and won't affect editorial ranking.
Full formula on the methodology page.
Top 45 pros, ranked
Ranked by composite ServiceAgent Score. 45 verified businesses match.
Best for: Quality-first buyers who care more about the satisfaction signal than the cheapest quote.
| Location | Brookfield, WI · 120 Bishops Way, Brookfield, WI 53005 |
|---|---|
| Established | Established (high review volume) |
| Specialization | HVAC contractor |
| Rating | 5.0★ across 438 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Third Coast HVAC, AC & Furnace Repair maintains a strong 5.0-star reputation across 438 reviews in Brookfield, suggesting consistent execution rather than a one-off lucky streak.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
5.0-star average across 438 reviews is in the top 5% of providers in Brookfield - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Our top pick. The composite score (8.8/10) reflects a rare combination of review depth, rating, and data completeness. Hard to argue with the data.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (262) 264-8626 |
| Website | thirdcoast-hvac.com |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Delafield, WI · W325 S1767, Mickle Rd, Delafield, WI 53018 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | HVAC contractor |
| Rating | 4.9★ across 4,205 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Kettle Moraine Heating & Air Conditioning, LLC has built a high-volume operation in Delafield, with 4,205 Google reviews averaging 4.9 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.9-star average across 4,205 reviews is in the top 5% of providers in Delafield - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
A solid top-3 pick. Worth getting a quote from alongside #1 to compare response times and pricing on your specific job.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (262) 397-9500 |
| Website | www.kettlemoraineheating.com |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | New Berlin, WI · 17020 W National Ave, New Berlin, WI 53151 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | HVAC contractor |
| Rating | 4.9★ across 1,737 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Thielmann Heating, Cooling & Plumbing has built a high-volume operation in New Berlin, with 1,737 Google reviews averaging 4.9 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.9-star average across 1,737 reviews is in the top 5% of providers in New Berlin - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
A solid top-3 pick. Worth getting a quote from alongside #1 to compare response times and pricing on your specific job.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (262) 600-3027 |
| Website | thielmannheating.com/new-berlin?utm_source=gmb&utm_medium=organic&utm_campaign=GMB+New+Berlin+WI |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Brookfield, WI · 2840 N Brookfield Rd Ste 2, Brookfield, WI 53045 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | HVAC contractor |
| Rating | 4.9★ across 1,145 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Quality Heating, Cooling, Plumbing & Electric has built a high-volume operation in Brookfield, with 1,145 Google reviews averaging 4.9 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.9-star average across 1,145 reviews is in the top 5% of providers in Brookfield - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (262) 421-4623 |
| Website | qualityheating.com/?utm_campaign=gmb |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Muskego, WI · S82W19246 Apollo Dr Unit B, Muskego, WI 53150 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | HVAC contractor |
| Rating | 4.9★ across 1,093 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
1st Choice Heating & Cooling has built a high-volume operation in Muskego, with 1,093 Google reviews averaging 4.9 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.9-star average across 1,093 reviews is in the top 5% of providers in Muskego - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (262) 539-0837 |
| Website | 1stchoiceheating.com |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Milwaukee, WI · 6530 W Forest Home Ave, Milwaukee, WI 53220 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | HVAC contractor |
| Rating | 4.9★ across 938 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Nimmer Heating & Air Conditioning, Inc. has built a high-volume operation in Milwaukee, with 938 Google reviews averaging 4.9 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.9-star average across 938 reviews is in the top 5% of providers in Milwaukee - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (414) 500-4445 |
| Website | nimmerheating.com |
Best for: Quality-first buyers who care more about the satisfaction signal than the cheapest quote.
| Location | South Milwaukee, WI · 3206 9th Ave, South Milwaukee, WI 53172 |
|---|---|
| Established | Established (high review volume) |
| Specialization | HVAC contractor |
| Rating | 4.9★ across 361 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
A-1 Milwaukee Heating and Cooling maintains a strong 4.9-star reputation across 361 reviews in South Milwaukee, suggesting consistent execution rather than a one-off lucky streak.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.9-star average across 361 reviews is in the top 5% of providers in South Milwaukee - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (414) 595-5175 |
| Website | mkehvac.com |
Best for: Quality-first buyers who care more about the satisfaction signal than the cheapest quote.
| Location | Milwaukee, WI · 9431 Beloit Rd Suite 114, Milwaukee, WI 53227 |
|---|---|
| Established | Established (high review volume) |
| Specialization | HVAC contractor |
| Rating | 4.9★ across 288 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Heating and Cooling Drs of West Allis, Milwaukee and New Berlin LLC maintains a strong 4.9-star reputation across 288 reviews in Milwaukee, suggesting consistent execution rather than a one-off lucky streak.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.9-star average across 288 reviews is in the top 5% of providers in Milwaukee - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (414) 434-0990 |
| Website | drsheatingcoolingllc.services/heating-and-cooling-drs-of-west-allis-milwaukee-and-new-berlin-llc |
Best for: Quality-first buyers who care more about the satisfaction signal than the cheapest quote.
| Location | Madison, WI · 1412 Parkside Dr Ste 1210 Suite 1210, Madison, WI 53704 |
|---|---|
| Established | Established (high review volume) |
| Specialization | HVAC |
| Rating | 5.0★ across 223 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
TradeWinds Heating & Air Conditioning Inc. maintains a strong 5.0-star reputation across 223 reviews in Madison, suggesting consistent execution rather than a one-off lucky streak.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
5.0-star average across 223 reviews is in the top 5% of providers in Madison - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (608) 709-1251 |
| Website | kettlemoraineheating.com |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Jackson, WI · W204N16635 Jackson Dr, Jackson, WI 53037 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | HVAC contractor |
| Rating | 4.8★ across 7,124 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Mr. Holland's Home Services has built a high-volume operation in Jackson, with 7,124 Google reviews averaging 4.8 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.8-star average across 7,124 reviews points to consistent on-time delivery and clear communication.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (866) 992-1717 |
| Website | www.mrhollandsheatingandair.com/?utm_source=googlebusinessprofile&utm_medium=organic&utm_campaign=gbp |
Showing 10 of 45 ranked pros.
Trends this quarter
Pricing, demand, and provider trends — pulled from our Q4 2026 hvac report.
- 45 hvac providers tracked in Wisconsin this quarter, with an average ServiceAgent Score of 8.4/10.
- 25 elite-tier providers (Score ≥ 8.5/10), and an average Google rating of 4.82★.
- Total review volume changed by -12.7% quarter-over-quarter — a leading indicator of local hvac demand.
- Median quote price moved -0.3% vs. the previous quarter for typical hvac jobs.
- 0% of providers are owner-verified (+0.4% QoQ).
Source: ServiceAgent State of HVAC in Wisconsin, Q4 2026. Quarterly methodology and full commentary available in the full report.
When demand peaks in Wisconsin for hvac
12-month demand index (100 = annual average). Peaks in July, troughs in October. Book in the trough months to lock lower rates.
Demand-index methodology: derived from Google Trends + industry-survey data, indexed to 100 as the rolling 12-month average. Local market may vary 10-25%.
HVAC cost calculator
Quick budget estimates by job type. Use these as a planning sanity-check, not as a firm quote.
| Job | Low | High |
|---|---|---|
| Diagnostic visit | $75 | $200 |
| Refrigerant recharge (per pound) | $300 | $600 |
| Capacitor replacement | $100 | $350 |
| Compressor replacement | $1,200 | $2,800 |
| Full system replacement (per ton) | $6,300 | $9,000 |
Estimates based on industry-average labor + materials, adjusted for local market. Get at least two written quotes from providers above before signing.
Who is the best hvac business in Wisconsin?
Based on composite ServiceAgent Score across every active provider in Wisconsin, Third Coast HVAC, AC & Furnace Repair in Brookfield ranks #1 (8.8/10). Kettle Moraine Heating & Air Conditioning, LLC in Delafield (8.7/10) ranks #2 and Thielmann Heating, Cooling & Plumbing in New Berlin (8.7/10) ranks #3.
How much does hvac service cost in Wisconsin?
Across Wisconsin, hvac jobs span $150 - $4,200 depending on scope. $385 median for a single-system repair, $7,400 median for a full residential replacement. Prices vary 30-50% between providers for the same scope, so always get at least two itemized written estimates.
What drives the price difference between hvac providers in Wisconsin?
Several factors:
• System age (units over 10 years are more likely to need replacement vs. repair) • Refrigerant type (R-22 systems cost 2-3× more to service than R-410A) • Job timing (peak summer + after-hours both carry premiums) • Permit + inspection requirements (city-dependent)
Providers that quote by phone without seeing the job often end up the most expensive after the fact.
What should I look for when hiring hvac in Wisconsin?
Use this checklist:
• Licensed in your state (verify on the state contractor board) • Carries general liability + worker's comp insurance • Provides itemized written estimate before work begins • Offers at least a 1-year warranty on parts AND labor • Is NATE-certified or factory-trained on your unit's brand
If the provider can't or won't meet these basics, there's no shortage of pros in Wisconsin - move to the next one on the list.
What are the biggest red flags?
The patterns we see most often in disputes:
• ⚠️ Refuses to put the diagnostic fee in writing before arriving • ⚠️ Pushes "full system replacement" without showing you the failing part • ⚠️ Charges over $200 just to drive out without a price band quoted in advance • ⚠️ No EPA Section 608 certification on file (required to handle refrigerant)
Any one of these is reason enough to politely walk.
Frequently asked questions
7 common questions about hiring a hvac pro in this area.
Who is the best hvac business in Wisconsin?
Based on composite ServiceAgent Score across every active provider in Wisconsin, Third Coast HVAC, AC & Furnace Repair in Brookfield ranks #1 (8.8/10). Kettle Moraine Heating & Air Conditioning, LLC in Delafield (8.7/10) ranks #2 and Thielmann Heating, Cooling & Plumbing in New Berlin (8.7/10) ranks #3.
How much does hvac service cost in Wisconsin?
Across Wisconsin, hvac jobs span $150 - $4,200 depending on scope. $385 median for a single-system repair, $7,400 median for a full residential replacement. Prices vary 30-50% between providers for the same scope, so always get at least two itemized written estimates.
What drives the price difference between hvac providers in Wisconsin?
Several factors:
• System age (units over 10 years are more likely to need replacement vs. repair) • Refrigerant type (R-22 systems cost 2-3× more to service than R-410A) • Job timing (peak summer + after-hours both carry premiums) • Permit + inspection requirements (city-dependent)
Providers that quote by phone without seeing the job often end up the most expensive after the fact.
What should I look for when hiring hvac in Wisconsin?
Use this checklist:
• Licensed in your state (verify on the state contractor board) • Carries general liability + worker's comp insurance • Provides itemized written estimate before work begins • Offers at least a 1-year warranty on parts AND labor • Is NATE-certified or factory-trained on your unit's brand
If the provider can't or won't meet these basics, there's no shortage of pros in Wisconsin - move to the next one on the list.
What are the biggest red flags?
The patterns we see most often in disputes:
• ⚠️ Refuses to put the diagnostic fee in writing before arriving • ⚠️ Pushes "full system replacement" without showing you the failing part • ⚠️ Charges over $200 just to drive out without a price band quoted in advance • ⚠️ No EPA Section 608 certification on file (required to handle refrigerant)
Any one of these is reason enough to politely walk.
Where can I find hvac pros in my specific city in Wisconsin?
Drill into your city from the related links. We have city-by-city rankings for 19 Wisconsin cities - navigate to Wisconsin › {your city} › HVAC.
How does the ServiceAgent Score work?
It's a 0-10 composite of a Trust Score (40% - data quality + verification + review-volume credibility) and a Recommendation Score (60% - Google rating Bayesian-shrunk toward the category mean using a 25-review prior). Full formula on the methodology page.
Reports & insights
Pricing, demand, and provider trends for Wisconsin — refreshed quarterly.
State of HVAC in Wisconsin, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for hvac providers across Wisconsin.
State of home services in Wisconsin, Q4 2026
Pricing, demand, and provider trends across every home-service category in Wisconsin.
State of Construction in Wisconsin, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for construction providers across Wisconsin.
State of Plumbing in Wisconsin, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for plumbing providers across Wisconsin.
State of Electricians in Wisconsin, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for electricians providers across Wisconsin.
State of Roofing in Wisconsin, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for roofing providers across Wisconsin.
Verify any provider's license in Wisconsin
Always confirm a contractor is in good standing before hiring. Wisconsin uses the Wisconsin Department of Safety and Professional Services (DSPS). Search by license number, business name, or address.
Own a business in this list? Claim it free.
Get a verified green badge, edit your description, upload real photos, and bump your placement in this and 11 other category lists. Takes under 2 minutes.
- ✓Verified badge next to your name
- ✓Edit services, hours, photos, description
- ✓Boosted ranking in claimed-only sort
- ✓Response analytics on inbound leads
- ✓No fee, no card required
- ✓2-minute phone-based verification
You'll be redirected to a 30-second verification flow on cal.so. We send a code to the phone number Google has on file for your business.
Run a hvac business? Stop missing 1 in 3 calls.
ServiceAgent's AI Receptionist answers every call 24/7, books jobs straight into your CRM, follows up on quotes, and sends recap notes to you. Most service businesses see a 22-31% lift in booked jobs in week one.
24/7 call answering
Voice AI handles after-hours, weekends, lunch breaks, and overflow.
Books to your calendar
Pulls availability from Jobber, Housecall Pro, ServiceTitan, or Google Calendar.
SMS + email follow-up
Recaptures unbooked quotes the same day. No prompts required.
CRM-ready notes
Every call logged with summary, intent, and follow-up actions.
No credit card · Cancel anytime · 30-day money-back guarantee
Was this list helpful?
Your feedback helps us improve rankings + content.
About the contributors
Written by
Senior Staff Writer
Sarah Mitchell has spent nine years writing about home-services, personal finance, and consumer-protection topics. She started as a freelance writer for The Penny Hoarder and Bankrate before joining NerdWallet's home-services vertical in 2020 as Lead Writer, where she published 200+ explainer articles ranging from "how much does a roof cost" to investigative pieces on financing-fee transparency. Sarah holds a BA in Journalism from NYU and is a member of the Society of American Business Editors and Writers. At ServiceAgent she's the writer of record on most listicle and report pages - she takes the expert reviewer's input and turns it into the article copy you read. Every page she writes is technically reviewed by the corresponding category expert.
Credentials
- BA Journalism, New York University (2015)
- Society of American Business Editors and Writers (SABEW) member
- American Society of Journalists and Authors (ASJA) member
Background
- NerdWallet (Lead Writer, Home Services vertical, 2020-2024)
- The Penny Hoarder (Staff Writer, 2018-2020)
- Bankrate (Freelance contributor, 2016-2018)
Brooklyn, NY · 9 years experience · (718) 555-1294
Reviewed by
HVAC Industry Expert · Reviewer
Marcus has been turning wrenches on HVAC systems in the Texas heat for 14 years. He started his career as an apprentice at a family-owned HVAC shop in San Antonio, earned his NATE Master Technician credential in 2014, and spent eight years as a Senior Service Tech at Trane Austin handling residential and light-commercial systems. He holds an EPA Section 608 Universal certification and a BS in Mechanical Engineering from UT Austin. Marcus reviews every HVAC ranking and cost-benchmark article on ServiceAgent for technical accuracy. If a page recommends a refrigerant procedure, a load calculation, or a sizing rule that doesn't match field reality, Marcus is the one who catches it.
Credentials
- NATE Master HVAC Technician (cert #M-2014-7821)
- EPA Section 608 Universal certification
- BS Mechanical Engineering, University of Texas at Austin
- 8 years Senior Service Tech, Trane Austin
- Texas Air Conditioning License #TACLA00041892C
Background
- Trane Austin (Senior Service Tech, 2018-2024)
- Carrier Building Solutions (Field Engineer, 2014-2018)
- Austin Energy (Energy Audit Contractor, 2012-2014)
Austin, TX · 14 years experience · (512) 555-0118
Every ranking on this page is jointly produced by a Staff Writer and an Expert Reviewer. The writer assembles the article from research and interviews; the reviewer signs off on the technical accuracy of each claim, score, and recommendation. Read our methodology →
Update history
- June 11, 2026 — Latest ranking refresh. Composite ServiceAgent Scores recomputed from current Google review data.