99.8review score /100
Portland, OR / Repairs & systems
Licensed Water heater installers in Portland
Ranked after matching the required license records.
The short answer
Highest scoreCentral Air Heating, Cooling & Plumbing · 99.8/100
Most Google ratingsCornel's Plumbing, Heating & Air Conditioning · 3,200
Record snapshotNovember 9, 2026 · 24 compared
- 1 Match dated source records.
- 2 Apply the published formula.
- 3 Show the sources and gaps.
What we check: Google listing 24/24 · Oregon CCB 24/24 · Oregon BCD 24/24
| Source | What it shows | Coverage | Source dates |
|---|---|---|---|
| Google listing | Listed contact details, rating, count and review date | 24 / 24 | 2026-11-09 |
| Oregon CCB | Dated license, endorsement, bond and insurance fields | 24 / 24 | 2026-11-08 |
| Oregon BCD | Contractor license class and status | 24 / 24 | 2026-11-08 |
Not checked: workmanship, price fairness or first-hand testing.
Not checked: workmanship, price fairness or first-hand testing.
The 24 ranked records
License records matchedEvery score uses the same published formula: Google rating, rating volume and newest review date. It is not a test of workmanship or safety. Active CCB plus the matching BCD contractor license checked. Confirm the license scope for every part of the job. The plumbing check does not verify the separate electrical reconnection scope. Scoring formula.
The listing categories include plumbing businesses. Confirm the water heater type and installation scope directly.
99.7review score /100
96.6review score /100
96.4review score /100
96.1review score /100
95.6review score /100
93.4review score /100
93.2review score /100
93.1review score /100
92.9review score /100
90.4review score /100
89.8review score /100
89.5review score /100
87.4review score /100
85.0review score /100
75.2review score /100
73.6review score /100
72.0review score /100
63.9review score /100
63.3review score /100
62.8review score /100
61.9review score /100
58.9review score /100
0.0review score /100
Compare the full ranking
Download CSV ↓Method reviews-1.0
How the score is calculated.
Each business receives the same calculation. The rating, volume and recency components follow our electrician formula, then normalize their 70 available points to 100. License history and bond/insurance points are not used here. The original Oregon electrician comparison uses additional eligibility and license components, so its score is not directly comparable to this review-data score.
Rating · 35 points: with n ratings and average r, adjusted rating a = (n × r + 10 × 4.0) ÷ (n + 10). Points = 35 × clamp((a − 3.5) ÷ 1.5, 0, 1). With zero ratings, award zero.
Volume · 25 points: 25 × min(1, log10(1 + n) ÷ log10(501)).
Recency · 10 points: newest review within 30 days: 10; 90 days: 8; 180 days: 5; 365 days: 2; older or no ratings: 0.
Final score: 100 × (rating + volume + recency points) ÷ 70. Display one decimal; sort by the unrounded value. Ties use more Google ratings, then the lower numeric Google listing ID.
A missing review-date retrieval excludes a rated listing until resolved; it does not become a zero. No ratings earns zero. Credential matching is separate context and does not affect this score. No score or rank is changed by hand. This is a public-review-data comparison, not a workmanship or safety assessment.
Before you hire
Compare the same scope.
Give each business the same project description, photos and address. Ask for written answers.
- 01
What capacity, fuel type and equipment are specified?
- 02
Does the quote cover venting, electrical or gas changes?
- 03
Who handles permits, disposal and final inspection?
How to check Oregon water heater installers records
Active CCB plus the matching BCD contractor license checked. Confirm the license scope for every part of the job. The plumbing check does not verify the separate electrical reconnection scope.
Project costs in Portland
This dataset does not contain sourced local service prices. We do not publish an estimated local price range from ratings or license records. Ask each business for a written price for the same scope, including labor, materials, permits, travel, exclusions and change orders. Compare the total and the included work.
Frequently asked questions
How were these Portland water heater installers ranked?
The 24 records use the published rating, review-volume and review-recency formula. The page states the credential checks completed for this trade. A review-data score is not a service-quality test.
Does a place on this list confirm current availability or coverage?
No. These are dated public records. Confirm service to your street address, the exact work, current license status and availability directly with the business.
Can a company pay for a higher rank?
No. Nobody pays to change a score or numbered position. Any separate promotional feature is disclosed and excluded from the scored comparison.
Update log
: source snapshot used for this comparison. The linked profiles and downloads identify the collection dates for individual facts.
: this page was built from that snapshot. Content changes do not establish a new data collection.
Review before the next publication is planned monthly; no automatic refresh date is claimed.
Selection, sources and limits
We collected 100 Google Maps results for “water heater installation” using the Portland search location on November 9, 2026. We kept matching service categories with an explicit Portland, OR listing address, no closed marker and complete rating/date inputs. Shared identities are deduplicated. The source directory contained 38 entries; 14 were held out and 0 promotional features were separated. 14 additional records did not pass the required credential match. This search sample is not a complete market census.
Each profile links to the original listing and any matched official record. Review text and reviewer details are not collected. Newest review dates and individual fact dates are shown in profiles. The required license records passed the published matching gate. Complaint histories and specialist qualifications beyond that gate have not been checked. A missing match does not establish a problem with a business.
Crewsive LLC publishes this comparison. Scores and positions cannot be bought. Promotional features are separate and excluded from the numbered ranking. Known client relationships are disclosed. Funding disclosure · Source data · Corrections.
Use this reference
Cite this page
Crewsive LLC. “Best Licensed Water heater installers in Portland, OR (2026): 24 Reviewed.” Portland Oregon Reviews. Content updated 2026-11-10. https://portlandoregonreviews.com/water-heaters
For ranking data, also state the data snapshot date (2026-11-09) and method version. A citation is a reference, not an endorsement.