Storage tank
$1,600–$2,400Typical cost, including installation
WATER HEATER REPLACEMENT IN LAKE OSWEGO
Lake Oswego Water Heater
Replacement
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See what replacement costs ↓LAKE OSWEGO AT A GLANCE
Replacing a water heater in Lake Oswego.
You need a plumbing permit to replace a water heater in Lake Oswego, even though most simple fixture swaps don't. It costs the city's plumbing minimum of about $97–$103 plus Oregon's 12% surcharge. City water comes from the Clackamas River and is soft, about 25 ppm.
- Permit to replace with the same type
- Yes · City of Lake Oswego Building Division (Permit Center)
- Permit fee
- 2026 Master Fees and Charges: water heater $24, but plumbing permits have a minimum fee. The booklet shows both a $97 residential plumbing minimum and a $102.82 commercial/residential minimum, plus Oregon's 12% state surcharge, for roughly $109–$115. A gas water heater's vent or flue is a separate $21 mechanical item.
- Who gets the permit
- The state Building Codes Division (BCD) says the person doing the work, homeowner or contractor, gets the permit. Hired companies need a Construction Contractors Board (CCB) license and the right BCD plumbing contractor license, and licensed contractors can use state plumbing minor labels ($140 for 10) for water heater replacements. The city's plumbing application has a 'property owner installation' section where the owner certifies the work is on residential or farm property owned by them or a close family member. Otherwise a contractor must list a CCB license number and a BCD or LCB license number.
- Electric utility
- Portland General Electric
- Gas utility
- NW Natural
- Water
- City of Lake Oswego (Clackamas River water treated at the Lake Oswego–Tigard Water Treatment Plant) · Soft: about 25 ppm (1.5 grains per gallon), from the city's water FAQ. The 2026 Water Quality Report (2025 data) doesn't list hardness.
- Rebate worth checking
- Energy Trust heat pump water heater incentive (Active)
- Typical home
- Built 1982 (median) · 69% owner-occupied
- Companies found
- 13 that advertise water heater work
01 / TYPICAL PRICES
What a new water heater costs.
Know before you call.
Heat-pump tank
$2,500–$5,000Typical cost, including installation
Tankless
$2,400–$5,400Typical cost, including installation
AI equipment illustrations; models vary and images are not to scale. Typical national prices from Home Depot ↗, checked September 28, 2026. The source doesn’t say how many jobs the ranges are based on. These are not Lake Oswego averages or guaranteed quotes.
Compare what each quote includes.Equipment · Labor · Permits · Old heater removalHow to compare quotes →
What we know about prices in Lake Oswego
- National installer’s published rangeThe ranges above. Home Depot ↗
- Local permit fee2026 Master Fees and Charges: water heater $24, but plumbing permits have a minimum fee. The booklet shows both a $97 residential plumbing minimum and a $102.82 commercial/residential minimum, plus Oregon's 12% state surcharge, for roughly $109–$115. A gas water heater's vent or flue is a separate $21 mechanical item.. City of Lake Oswego Building Division (Permit Center) fee source ↗
- Local company’s advertised price2 of the companies listed for Lake Oswego post water heater prices or specials on their websites: Cornel's Plumbing, Heating & Air, Mr. Rooter Plumbing of West Portland. Each offer has its own conditions.
- Measured local dataNot collected yet, so no Lake Oswego average is shown.
What can change the price in Lake Oswego?
Re-piping existing fixtures is $17 for the first and $10 for each one after. Venting a gas water heater is a mechanical permit item ($21, or $20 for a flue vent).
02 / COMPANIES WE FOUND
Who replaces water heaters in Lake Oswego?
Companies that advertise water heater replacement here, with what their water heater customers say.
Companies we found in our research. They are not Ember & Tank providers or partners. We show selected reviews, not a rating or every review. How we choose reviews →
Central Air Heating, Cooling & Plumbing
Lists Lake Oswego among the areas it serves. Based in Portland.
- Tank
- Tankless
- Repair
- Emergency service
What the reviews say
Water heater feedback Customers praised quick scheduling, clear explanations and a final water heater replacement cost that matched the quote.
Worth knowing No water heater complaints found in the sources checked.
2 water heater reviews read, checked September 30, 2026.
Cornel's Plumbing, Heating & Air
Lists Lake Oswego among the areas it serves. Based in Portland.
- Tank
- Tankless
- Repair
- Emergency service
Published price: Coupons: 'Water Heater Installation – $250 Off' and 'Full Water Heater Inspection' $89 (reg. $149); both expire September 30, 2026; cannot be combined. No base installed prices published.
What the reviews say
Water heater feedback Testimonials praised a fast, polite replacement crew and a tankless service technician who explained the work and documented it with photos and video.
Worth knowing No water heater complaints found in the sources checked.
2 water heater reviews read, checked September 30, 2026.
D&F Plumbing, Heating and Cooling
Lists Lake Oswego among the areas it serves. Based in Portland.
- Tank
- Tankless
- Heat pump
- Repair
- Emergency service
What the reviews say
Water heater feedback BBB reviewers praised same-day water heater replacements, clear explanations of options, and help diagnosing tankless parts under warranty.
Worth knowing One BBB reviewer said a technician left residue from water heater work across the basement floor without telling them and repeated cleanup requests went unanswered (the company apologized and said it would take the feedback into account).
4 water heater reviews read, checked September 30, 2026.
Fast Water Heater Co. (Oregon)
Lists Lake Oswego among the areas it serves. Based in Troutdale (Oregon office; company HQ Woodinville, WA).
- Tank
- Tankless
- Heat pump
- Repair
- Emergency service
What the reviews say
Water heater feedback Oregon reviewers praised same-day installs after a failure, punctual and kind installers, and prices and warranties they found reasonable.
Worth knowing A Portland reviewer said a $1,749 basic install rose to $3,000 with code items including a $500 leak detector the county said was not required, and another said the company wrongly claimed rebate eligibility, costing a $1,200 rebate.
3 water heater reviews read, checked September 30, 2026.
M T Dunn Plumbing
Lists Lake Oswego among the areas it serves. Based in Hillsboro.
- Tank
- Tankless
- Repair
- Emergency service
What the reviews say
Water heater feedback A reviewer praised a water heater installation done quickly, professionally and cleanly.
Worth knowing No water heater complaints found in the sources checked.
1 water heater review read, checked September 30, 2026.
Meticulous Plumbing
Lists Lake Oswego among the areas it serves. Based in Portland.
- Tank
- Tankless
- Repair
What the reviews say
Water heater feedback Reviewers praised quick response, next-day water heater replacement, tidy work and technicians who explained the controls.
Worth knowing No water heater complaints found in the sources checked.
4 water heater reviews read, checked September 30, 2026.
Roto-Rooter Plumbing & Water Cleanup (Portland)
Lists Lake Oswego among the areas it serves. Based in Portland.
- Tank
- Tankless
- Heat pump
- Repair
- Emergency service
What the reviews say
Water heater feedback Reviewers praised quick, friendly water heater replacement and troubleshooting, including a small extra fix done free.
Worth knowing No Portland-specific water heater complaints were found in the sources checked; national BBB complaints about Roto-Rooter water heater work could not be tied to this location.
3 water heater reviews read, checked September 30, 2026.
What the reviews say
Water heater feedback Republished reviews praised quick scheduling, clear explanations of options, clean installs and competitive prices.
Worth knowing No water heater complaints found in the sources checked; the accounts come from a company-curated reviews page.
5 water heater reviews read, checked September 30, 2026.
What the reviews say
We haven’t found reviews that mention this company’s water heater work yet.
bluefrog Plumbing + Drain of Portland
Lists Lake Oswego among the areas it serves. Based in Portland.
- Tank
- Tankless
- Heat pump
- Repair
What the reviews say
We haven’t found reviews that mention this company’s water heater work yet.
Also listing Lake Oswego: Mr. Rooter Plumbing of West Portland, Sky Heating, AC, Plumbing & Electrical, Sun Glow Inc..
Order: companies based in Lake Oswego first, then companies whose water heater reviews we’ve read. Each group is alphabetical. These businesses are not our employees or vetted partners and do not receive requests from Ember & Tank. We haven’t checked their license, insurance or quality of work. Oregon CCB license search ↗.
FROM COMPANIES SERVING LAKE OSWEGO
Photos of water heater jobs from these companies.
HOMES IN LAKE OSWEGO
What Lake Oswego homes are like.
1982Median year built
46%Built before 1980
69%Owner-occupied
57%Heat with utility gas
69%Single-family homes
About 46% of homes were built before 1980. Older homes often have older venting, smaller closets and shutoff valves that should be checked before install day.
57% of homes heat with utility gas, so gas water heaters with existing venting are common here.
U.S. Census Bureau, American Community Survey ACS 2024 5-year ↗ (2020-2024). Heating fuel is what homes use to heat the house. It often, but not always, matches the water heater’s fuel.
LOCAL CONDITIONS
What’s different in Lake Oswego.
What the replacement must meet
Per Oregon's statewide code interpretation, a replacement heater in an existing home must be up to current code on earthquake straps, garage elevation, the relief valve's discharge, thermal expansion and combustion air. Pipe sizing, a drip pan and existing water pressure above 80 psi are left as they are.
Water heaters are the exception
Lake Oswego waives fixture fees when you just replace a fixture without re-plumbing or moving it, except for water heaters. Even a same-type water heater swap gets a permit and an inspection.
ENERGY & WATER
Who supplies Lake Oswego homes.
Energy
- Electric: Portland General Electric
- Gas: NW Natural
Oregon Dept. of Energy – Clackamas County energy profile (2018) ↗
Water
City of Lake Oswego (Clackamas River water treated at the Lake Oswego–Tigard Water Treatment Plant): Soft: about 25 ppm (1.5 grains per gallon), from the city's water FAQ. The 2026 Water Quality Report (2025 data) doesn't list hardness.
City of Lake Oswego – Public Works FAQ ↗ · City of Lake Oswego 2026 Water Quality Report ↗
REBATES & CREDITS
Rebates for Lake Oswego homes.
For Portland General Electric and NW Natural customers in Lake Oswego. Ask installers for the price before rebates, then check with the program that you qualify.
- Energy Trust heat pump water heater incentive ↗Active$1,200 for a Tier 3 or higher heat pump water heater installed by a licensed contractor in an existing home, applied as an instant discount through the distributor.
- Energy Trust gas tankless water heater incentive ↗Active$400 for an ENERGY STAR gas tankless water heater that replaces an existing gas storage tank water heater.
- Oregon Home Energy Rebates (IRA HEAR and HOMES) ↗Not launchedOregon received over $113 million for the two federal rebate programs, but ODOE says no rebates are currently available and there is no application opening date.
- Federal Energy Efficient Home Improvement Credit (25C) ↗EndedCovered improvements made through December 31, 2025.
Checked September 30, 2026. Who qualifies and the conditions: Oregon rebates · How to check an incentive.
PERMITS & LICENSING
Permits and licenses in Lake Oswego.
Permits and who issues them
Lake Oswego's 2026 fee booklet says fixture fees don't apply when you only replace fixtures without re-plumbing or moving them, but names water heaters as the exception. So replacing a water heater needs a plumbing permit. Apply on the city's e-permitting system.
City of Lake Oswego Building Division (Permit Center) ↗ · City of Lake Oswego – 2026 Master Fees and Charges (Section 9: Building) ↗ · City of Lake Oswego – Plumbing Permit Application (revised 01/01/2022) ↗ · City of Lake Oswego – Permit applications ↗ · Oregon BCD – About Oregon residential building permits ↗ · Oregon BCD – Plumbing minor labels ↗
Check the installer’s license
Ask for the license number and search it yourself on the Oregon CCB license search ↗. A listing on Ember & Tank is not a license check. Oregon licensing explained →
NEARBY CITIES
Compare places near Lake Oswego.
| City | Distance | Permit to replace | Fee | Electric |
|---|---|---|---|---|
| Oak Grove | 3 mi | Required (county) | $31.75 | Portland General Electric |
| Tigard | 4 mi | Required | $37.52 | Portland General Electric |
| West Linn | 4 mi | Required | $34 | Portland General Electric |
| Milwaukie | 4 mi | Required | $33.60 | Portland General Electric |
| Tualatin | 4 mi | Required | $27.55 | Portland General Electric |
| Oatfield | 5 mi | Required (county) | $31.75 | Portland General Electric |
COMMON QUESTIONS
Lake Oswego water heater questions.
Do I need a permit to replace a water heater in Lake Oswego?
Yes. The city's fee rules exempt simple fixture swaps, but not water heaters.
Can a homeowner pull the permit?
Yes, if the home is owned by you or a close family member. The plumbing application has a property owner installation section.
Is Lake Oswego water hard?
No. The city says its Clackamas River water is soft, around 25 ppm (1.5 grains per gallon).
More guides: Oregon water heater replacement · All local guides