Published May 12, 2026 · Last updated October 21, 2026
Water Heater Plumbing in Montgomery, Illinois: Best Pros (2027)
Quick answer
The top-ranked Plumbing provider in Montgomery is Andersen Plumbing, Heating and AC Repair (Montgomery), with a 5.0★ rating across 690 Google reviews and a ServiceAgent Score of 8.6/10. Also strongly rated: R.J. O'Neil Inc. Mechanical Contractors. See the full ranked list and how each provider scores below.
TL;DR
- 2 water heater plumbing providers match in Montgomery, Illinois.
- Top pick: Andersen Plumbing, Heating and AC Repair (ServiceAgent Score 8.6/10).
- Median ServiceAgent Score: 8.3/10.
- 0 owner-verified listings.
- Filtered for Water Heater: install, replace, tankless conversion.
At-a-glance: top 2 plumbing pros in Montgomery
Compare the top picks side-by-side. Full reviews of each below.
| # | Provider | SA Score |
|---|---|---|
| #1 | Andersen Plumbing, Heating and AC Repair | 8.6 |
| #2 | R.J. O'Neil Inc. Mechanical Contractors | 8.0 |
SA Score = ServiceAgent composite (0–10). Tap a row number to jump to the full review.
How we chose these
Same scoring engine as the main Montgomery plumbing ranking, with an additional filter step: we look for Water Heater signals in each provider's business categories, service tags, and recent review text.
When the Water Heater filter would surface fewer than five providers, we fall back to showing top-rated plumbing pros generally - they are far more likely to handle water heater work than an unrated provider would be.
Full formula on the methodology page.
2 Best Plumbing Companies Ranked
Ranked by composite ServiceAgent Score. 2 verified businesses match.
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Montgomery, IL · 1554 Crescent Lake Dr, Montgomery, IL 60538 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 5.0★ across 690 Google reviews |
| Status | Unclaimed listing (Google data) |
| Source | Public Google Business Profile · data as of May 12, 2026 |
The approach
Andersen Plumbing, Heating and AC Repair has built a high-volume operation in Montgomery, with 690 Google reviews averaging 5.0 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
5.0-star average across 690 reviews is in the top 5% of providers in Montgomery - 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 in Montgomery. The 8.6/10 composite comes from a rare combination of review depth (690 reviews), a 5.0-star rating, and complete profile data.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (630) 528-1343 |
| Website | andersenph.com/montgomery-heating-services/?utm_source=google&utm_medium=organic&utm_campaign=gbp_montgomery |
Best for: Mid-tier plumbing jobs where price and quality both matter.
| Location | Montgomery, IL · 1125 S Lake St, Montgomery, IL 60538 |
|---|---|
| Established | Some operating history (limited review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 48 Google reviews |
| Status | Unclaimed listing (Google data) |
| Source | Public Google Business Profile · data as of May 12, 2026 |
The approach
R.J. O'Neil Inc. Mechanical Contractors operates in Montgomery with 48 Google reviews at 4.8 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
4.8-star average across 48 reviews puts them in the upper tier for plumbing providers in Montgomery.
⚠ 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 top-3 pick in this market on the composite score. Worth a quote alongside #1 to compare response time and pricing on your specific job.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (630) 906-1300 |
| Website | www.rjoneil.com |
How to choose a plumbing pro
The ranking does the research; these five checks help you turn the shortlist into the right hire.
- 1
Start with the top of the ranking, not an ad
The providers ranked highest in Montgomery earned it on review depth, rating, and data completeness — not on ad spend. Shortlist two or three from the top before you start calling.
- 2
Get two or three quotes in writing
Pricing for plumbing work varies by scope and local market. Written quotes from a few shortlisted pros let you compare apples to apples and spot an outlier before you commit.
- 3
Read the most recent reviews, not just the average
A strong average can hide a recent slide in quality. Sort reviews by newest and look for how the business handles problems — a thoughtful reply to a bad review often tells you more than the star count.
- 4
Confirm licensing, insurance, and scope before work starts
Ask for the license number and proof of insurance, and get the full scope of work plus any parts/labor warranty in writing before any plumbing job begins. Verify the license on your state board if the work is significant.
- 5
Match the provider to your actual job
A high-volume operator is great for a routine job; a smaller specialist may be a better fit for an unusual one. Use the scorecard above to pick for your situation, not just the overall rank.
Trends this quarter
Pricing, demand, and provider trends — pulled from our Q4 2026 plumbing report.
- 11 plumbing providers tracked in Montgomery this quarter, with an average ServiceAgent Score of 7.7/10.
- 1 elite-tier providers (Score ≥ 8.5/10), and an average Google rating of 4.53★.
- Total review volume changed by +8.8% quarter-over-quarter — a leading indicator of local plumbing demand.
- Median quote price moved +5.4% vs. the previous quarter for typical plumbing jobs.
- 0% of providers are owner-verified (+4.8% QoQ).
Source: ServiceAgent Plumbing trends in Montgomery, Q4 2026. Quarterly methodology and full commentary available in the full report.
When demand peaks in Montgomery for plumbing
12-month demand index (100 = annual average). Peaks in January, troughs in September. 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%.
Pricing: what plumbing costs
Quick budget estimates by job type. Use these as a planning sanity-check, not as a firm quote.
| Job | Low | High |
|---|---|---|
| Service call / diagnostic | $100 | $250 |
| Drain cleaning (snake) | $150 | $450 |
| Hydro-jet drain | $400 | $900 |
| Water heater replacement (tank) | $1,100 | $1,800 |
| Tankless water heater install | $2,200 | $4,500 |
Estimates based on industry-average labor + materials, adjusted for local market. Get at least two written quotes from providers above before signing.
What to know about hiring Plumbing
Plumbing jobs split into emergencies (leaks, clogs, no hot water) and planned work (re-pipes, fixture installs, water heaters).
What drives the price
Whether it's diagnostic vs. repair vs. replacement, access to the pipes, and emergency timing.
What to check
State plumbing license, insurance, and whether they give a flat quote after seeing the job rather than an hourly open-ended rate.
When to call
For a slow leak, sooner is cheaper — water damage escalates fast. Keep an emergency number on hand before you need it.
Why trust this list
This page narrows the full Montgomery plumbing directory to providers that explicitly serve water heater requests. We surfaced them by scanning provider categories, service tags, and review text for relevant signals.
If you're looking at this page, you probably need water heater plumbing now - so we've ordered the list by composite ServiceAgent Score and surfaced the response-time indicator on every card. Call the top three; the first to pick up usually wins the job.
Frequently asked questions
8 common questions about hiring a plumbing pro in this area.
Who offers water heater plumbing in Montgomery?
Andersen Plumbing, Heating and AC Repair and 1 other plumbing businesses in Montgomery offer water heater service. See the ranked list above; the top picks have the strongest combination of reviews, verification, and water heater signals.
How fast can a water heater plumbing pro arrive?
Response time varies by provider and current job load. Claimed listings display their average response window directly on the profile - aim for providers showing under-24-hour replies.
What does water heater plumbing cost in Montgomery?
Cost depends on scope and materials. Get at least two written estimates - most Montgomery plumbing providers offer free quotes for water heater work.
Are these providers licensed and insured?
Listings tagged with ✓ Licensed & insured have that signal in their provider data. Always verify directly with the provider before any work, and confirm coverage via your state license board.
How is this list different from the main Plumbing in Montgomery page?
This page is filtered to providers offering water heater service specifically. The main Plumbing in Montgomery page lists every provider regardless of intent.
Who are the highest-rated plumbing providers in Montgomery?
Based on composite ServiceAgent Score, Andersen Plumbing, Heating and AC Repair in Montgomery ranks #1 (8.6/10).
How does the ServiceAgent Score work?
It's a 0-10 composite of a Trust Score (40% - data quality, verification and review-volume credibility) and a Recommendation Score (60% - the 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. 0 of these 2 listings are currently ServiceAgent-verified (owners completed our claim flow). Verified listings get a green badge in the ranking.
Reports & insights
Pricing, demand, and provider trends for Montgomery — refreshed quarterly.
Plumbing trends in Montgomery, Q4 2026
Pricing, demand, and review-volume trends for plumbing providers in Montgomery.
Home-service trends in Montgomery, Alabama (Q4 2026)
Across every category, here's what's changing in the Montgomery home-service market this quarter.
State of Plumbing in Illinois, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for plumbing providers across Illinois.
State of home services in Illinois, Q4 2026
Pricing, demand, and provider trends across every home-service category in Illinois.
State of HVAC in Illinois, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for hvac providers across Illinois.
State of Electricians in Illinois, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for electricians providers across Illinois.
Verify any provider's license in Illinois
Always confirm a contractor is in good standing before hiring. Illinois uses the Illinois Department of Financial and Professional Regulation (IDFPR). 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
Fill out the verification form right here. We'll match it to your Google Business Profile and confirm by phone within one business day.
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About the author
Written by
Growth & Product Marketing, ServiceAgent
Shaambhav Shankar works in product marketing at SaaS Labs, the company behind ServiceAgent, and describes himself as a marketing generalist with six years of experience in SaaS. He studied at Symbiosis International University and is based in the Greater Delhi Area. He writes the bulk of the ServiceAgent blog, covering call answering, CRM and the operational side of running a home services business, and authors and maintains the ServiceAgent Directory rankings.
Credentials
- Symbiosis International University (2016-2019)
- Digital Marketing, Google India (2020)
- Financial Modelling and Valuation, Ernst & Young (2019)
- Building with the Claude API, Anthropic (2026)
- AI Fluency for Builders, Anthropic (2026)
- Introduction to Model Context Protocol, Anthropic (2026)
Greater Delhi Area, India · 6 years experience
Every ranking on this page is written and maintained by Shaambhav Shankar, who owns the ranking methodology and verifies each provider listing against public data. No pay-to-rank, no sponsored placements. Read our methodology →
Update history
- October 21, 2026 — Latest ranking refresh. Composite ServiceAgent Scores recomputed from current Google review data.
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