Best Home-Service Pros in Johnston, Iowa: 5 Top Businesses (2026)
5 verified home-service businesses in Johnston, ranked by ServiceAgent Score across 3 categories. HVAC, plumbing, roofing, electricians, landscaping, and more. Real reviews, transparent methodology.
TL;DR
- 5 verified home-service businesses in Johnston, Iowa across 3 service categories.
- Top pick: Schaal Plumbing, Heating and Cooling (HVAC) - ServiceAgent Score 8.5/10.
- 3 elite-tier providers (ServiceAgent Score ≥ 8.5/10) and 0 owner-verified listings.
- 0 providers offer 24/7 or emergency service in Johnston.
- Categories covered include HVAC, Garage Door, Solar.
- For a category-specific shortlist (HVAC, Plumbing, Roofing, etc.), drill into the related pages section below.
Why trust this list
Johnston has more home-service businesses than any homeowner has time to research. This page is the cross-category overview - the top-rated 25 across every service we cover - and a jumping-off point into the category-specific rankings.
Every listing is pulled from active Google Business Profile data, then scored on a composite ServiceAgent Score that blends Trust (data quality + verification) with Recommendation (rating + review volume, Bayesian-shrunk). The top 25 below are the highest-scoring providers regardless of category - useful for "who's the best in Johnston?" curiosity searches.
For an actionable shortlist, drill into the Johnston HVAC or Johnston Garage Door page in the related links section. Each category page has its own ranking, methodology paragraph, FAQ, and cost benchmarks.
At-a-glance: top 5 home services pros in Johnston
Compare the top picks side-by-side. Full reviews of each below.
| # | Provider | SA Score |
|---|---|---|
| #1 | Schaal Plumbing, Heating and Cooling | 8.5 |
| #2 | Kohles & Bach Heating & Cooling | 8.5 |
| #3 | Absolute Overhead Door | 8.5 |
| #4 | Amega Garage Doors & Openers, Inc. | 8.2 |
| #5 | True Energy | 7.9 |
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 home-service business in Johnston 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.
5 Best Home-Service Companies Ranked
Ranked by composite ServiceAgent Score. 5 verified businesses match.
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Johnston, IA · 5670 NW Beaver Dr, Johnston, IA 50131 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | HVAC |
| Rating | 4.9★ across 8,194 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Schaal Plumbing, Heating and Cooling has built a high-volume operation in Johnston, with 8,194 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 8,194 reviews is in the top 5% of providers in Johnston - 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 (8.5/10) 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 | (515) 207-2272 |
| Website | callschaalyaall.com |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Johnston, IA · 5185 NW Beaver Dr, Johnston, IA 50131 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | HVAC |
| Rating | 4.9★ across 2,377 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Kohles & Bach Heating & Cooling has built a high-volume operation in Johnston, with 2,377 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 2,377 reviews is in the top 5% of providers in Johnston - 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 | (515) 207-6569 |
| Website | www.kohlesandbach.com/?utm_source=google&utm_medium=organic&utm_campaign=gbp-profile |
Best for: Customers prioritizing top-end satisfaction scores in Johnston.
| Location | Johnston, IA · 8993 NW Beaver Dr, Johnston, IA 50131 |
|---|---|
| Established | Operating multiple years (moderate review history) |
| Specialization | Garage door supplier |
| Rating | 4.9★ across 87 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Absolute Overhead Door operates in Johnston with 87 Google reviews at 4.9 stars - a steady mid-tier signal in our composite scoring.
- 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 87 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
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 | (515) 238-8472 |
| Website | www.absoluteohd.com |
Best for: Mid-tier garage door jobs where price and quality both matter.
| Location | Johnston, IA · 4901 NW 57th Ave, Johnston, IA 50131 |
|---|---|
| Established | Operating multiple years (moderate review history) |
| Specialization | Garage door supplier |
| Rating | 4.6★ across 100 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Amega Garage Doors & Openers, Inc. operates in Johnston with 100 Google reviews at 4.6 stars - a steady mid-tier signal in our composite scoring.
- 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
4.6-star average across 100 reviews puts them in the upper tier for garage door providers in Johnston.
⚠ 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
Mid-tier ranking in this market. Quality looks reasonable but isn't a standout vs. the top 3 - use them if you can't get a quote from a higher-ranked provider in time.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (515) 633-2119 |
| Website | amegagaragedoors.com |
5. True Energy
Best for: Buyers willing to try a newer entrant with strong early reviews.
| Location | Johnston, IA · 6165 NW 86th St, Johnston, IA 50131 |
|---|---|
| Established | Some operating history (limited review volume) |
| Specialization | Solar |
| Rating | 5.0★ across 13 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
True Energy is a smaller or newer entrant in Johnston with 13 public reviews so far. The smaller sample makes the 5.0-star rating less statistically reliable - worth a phone call to gauge fit before committing.
- 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 13 reviews puts them in the upper tier for solar providers in Johnston.
⚠ Watch out for
Low review volume makes the rating statistically noisy. Get references from 2-3 recent jobs before signing.
Our take
Ranks in the middle of the pack mainly because review volume is still building. The rating itself is strong; treat them as a "worth a quote" rather than a default pick.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (515) 493-7068 |
| Website | trueenergy.solar |
Trends this quarter
Pricing, demand, and provider trends — pulled from our Q4 2026 regional report.
- 5 providers tracked in Johnston this quarter, with an average ServiceAgent Score of 8.3/10.
- 3 elite-tier providers (Score ≥ 8.5/10), and an average Google rating of 4.86★.
- Total review volume changed by -3.2% quarter-over-quarter — a leading indicator of local demand.
- Median quote price moved +2.3% vs. the previous quarter.
- 0% of providers are owner-verified (-0.5% QoQ).
Source: ServiceAgent Home-service trends in Johnston, Iowa (Q4 2026). Quarterly methodology and full commentary available in the full report.
Local context
What's active in Johnston
Share of Johnston listings by home-service category. A signal of where demand is strongest in the local market.
Updated alongside the quarterly category reports — see methodology for how the activity index is computed.
Johnston pricing snapshot
Typical job-cost ranges for the top categories in Johnston. Use as a benchmark when comparing written quotes.
| Category | Pros | Typical job cost |
|---|---|---|
| HVAC | 2 | $150 - $4,200 |
| Garage Door | 2 | $120 - $4,800 |
| Solar | 1 | $10,000 - $45,000 |
Coverage across Johnston
Johnston home-service businesses span every neighborhood. Drill into a ZIP to narrow the shortlist.
When demand peaks in Johnston for home services
12-month demand index (100 = annual average). Peaks in July, troughs in January. 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%.
Who are the highest-rated home-service businesses in Johnston?
Based on composite ServiceAgent Score, Schaal Plumbing, Heating and Cooling (HVAC) ranks #1 (8.5/10). Kohles & Bach Heating & Cooling (HVAC) and Absolute Overhead Door (Garage Door) round out the top 3. Full ranking above.
Which service categories are covered for Johnston?
We currently rank 3 categories in Johnston: HVAC, Garage Door, Solar. Each has its own dedicated page with category-specific cost benchmarks, red flags, and FAQs.
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.
Are these listings verified?
Every listing is pulled from active Google Business Profile data. Listings with a green Verified badge have additionally completed our owner-claim flow, confirming they control the business phone + email. 0 of these 5 Johnston listings are currently ServiceAgent-verified.
How fast can a Johnston pro respond to my request?
Most Johnston providers respond within their stated business hours - typically the same day for emergency-flagged providers (0 of the listings here advertise 24/7 service). Claimed listings show their average response window directly on their profile.
Frequently asked questions
7 common questions about hiring a home services pro in this area.
Who are the highest-rated home-service businesses in Johnston?
Based on composite ServiceAgent Score, Schaal Plumbing, Heating and Cooling (HVAC) ranks #1 (8.5/10). Kohles & Bach Heating & Cooling (HVAC) and Absolute Overhead Door (Garage Door) round out the top 3. Full ranking above.
Which service categories are covered for Johnston?
We currently rank 3 categories in Johnston: HVAC, Garage Door, Solar. Each has its own dedicated page with category-specific cost benchmarks, red flags, and FAQs.
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.
Are these listings verified?
Every listing is pulled from active Google Business Profile data. Listings with a green Verified badge have additionally completed our owner-claim flow, confirming they control the business phone + email. 0 of these 5 Johnston listings are currently ServiceAgent-verified.
How fast can a Johnston pro respond to my request?
Most Johnston providers respond within their stated business hours - typically the same day for emergency-flagged providers (0 of the listings here advertise 24/7 service). Claimed listings show their average response window directly on their profile.
Why does the ranking change between visits?
Two reasons: (1) new reviews land continuously on Google Business Profiles and we re-compute scores as the data refreshes; (2) when a provider claims their listing, the Trust Score component bumps. "Last updated" at the top of the page is the timestamp of the most recent re-compute.
How do I get my Johnston business added to this list?
If your business has an active Google Business Profile in Johnston, it should already be here. If you don't see it, email help@serviceagent.ai. To claim an existing listing (verify ownership, edit description, upload photos, get the green badge), scroll to the "Run a business in this list?" panel.
Reports & insights
Pricing, demand, and provider trends for Johnston — refreshed quarterly.
Home-service trends in Johnston, Iowa (Q4 2026)
Across every category, here's what's changing in the Johnston home-service market this quarter.
State of home services in Iowa, Q4 2026
Pricing, demand, and provider trends across every home-service category in Iowa.
State of Solar in Iowa, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for solar providers across Iowa.
State of Plumbing in Iowa, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for plumbing providers across Iowa.
State of HVAC in Iowa, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for hvac providers across Iowa.
State of Electricians in Iowa, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for electricians providers across Iowa.
Verify any provider's license in Iowa
Always confirm a contractor is in good standing before hiring. Iowa uses the Iowa Division of Labor — Contractor Registration. Search by license number, business name, or address.
Own a business in this list? Claim it free.
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- ✓Verified badge next to your name
- ✓Edit services, hours, photos, description
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- ✓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.
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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
Director of Methodology · Reviewer
Aisha holds a PhD in Statistics from Stanford University (2017) and is responsible for the design, audit, and ongoing calibration of ServiceAgent's composite scoring formula. Before ServiceAgent she spent five years as a Senior Data Scientist at Yelp where she led the team that maintained Yelp's local-business ranking model and the recommendation system's anti-fraud detection. Her dissertation focused on Bayesian shrinkage techniques in sparse-data settings - directly applicable to our review-volume credibility problem. Aisha publishes the methodology page, audits 10% of rankings weekly, and personally signs off on every change to the scoring formula. If a page has a Dataset schema or a published formula, Aisha reviewed it.
Credentials
- PhD Statistics, Stanford University (2017)
- MS Statistics, Stanford University (2014)
- BS Mathematics, MIT (2012)
- American Statistical Association (member)
- ACM SIGKDD Data Mining (member)
Background
- Yelp (Senior Data Scientist, 2017-2022)
- Stanford Statistics Department (Teaching Fellow, 2015-2017)
Chicago, IL · 12 years experience · (312) 555-1187
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 28, 2026 — Latest ranking refresh. Composite ServiceAgent Scores recomputed from current Google review data.