How much do water filtration system repairs cost?
Ashburn, VA

How much do water filtration system repairs cost?

Ashburn, VA

How much do water filtration system repairs cost?

$200 – $500average whole-house system repair cost
$80 – $380 average reverse osmosis system repair cost

Get free estimates for your project or view our cost guide below:

$200 – $500 average whole-house system repair cost

$80 – $380 average reverse osmosis system repair cost


Get free estimates for your project or view our cost guide below:
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Sarah Noel
Written by
Sarah Noel
Edited by
Tara Farmer
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Tom Grupa

Water filtration system repair costs

Water-filtration system repairs cost $100 to $500 on average, depending on the system type, size, and repair issue. Home water-filtration system service costs $50 to $150 per hour. Water-filtration system maintenance service fees are $65 to $180 for inspections and basic repairs.

Water filtration system repair cost
System type Average total repair cost
Whole house $200 – $500
Well water $200 – $600
Reverse osmosis $80 – $380
Water softener $150 – $600
Under-sink $100 – $300
Water distiller $80 – $270

Whole house water filtration system

Whole-house water filtration system repair costs $200 to $500 on average, depending on the system type, size, and accessibility. This price includes changing all the filters or any minor repairs completed in less than 3 hours.

  • Water line leak repair costs $120 to $180.

  • Carbon, sediment, and iron filters cost $15 to $65 each.

  • UV lamp replacements cost $20 to $100 each.

  • Installing a new whole-house water filtration system costs $850 to $5,400.

Well-water filtration system

Well-water filtration system maintenance costs $200 to $600 for average repairs. Prices increase for replacing chemical injectors. Purifying well water requires up to 5 different systems combined. Issues can occur in the water softener, UV filter, carbon filter, sediment filter, or chemical injector.

A new well-water filtration system costs $800 to $4,000 installed.

Reverse osmosis system repair

Reverse osmosis system repair costs $80 to $380 on average for the labor and replacement parts. Common issues include low or no water flow, leaks, a defective tank, and a faulty valve.

A new under-sink reverse osmosis system costs $300 to $950 installed.

A reverse osmosis system for home water filtration.
A reverse osmosis system for home water filtration.

Water softener repair cost

Water softener repair costs $150 to $600, depending on the size, system complexity, and issue. Water softeners have no filters inside to change and require little maintenance beyond refilling the unit with salt regularly.

Under-sink water system repair cost

Under-sink water system repair costs $100 to $300, depending on the issue. Leaks, low water pressure, and clogs are the most common issues. Replacing an under-sink water system costs $170 to $580 for the new unit and labor.

Water distiller repair cost

Water distiller repair costs $80 to $270 on average. Common issues include water leaks and shutdowns due to overheating. Water distillers are easily accessible, and technicians complete most repairs within 1 hour.

Water filter repair cost factors

Cost factors for water filter repair include:

  • LaborA plumber costs $45 to $150 per hour for repairs and replacements. Handyman rates are $50 to $80 per hour for maintenance and filter changes.

  • Emergency service – An extra $75 to $350 flat fee typically applies for fixing a leak or critical issue after hours. These hourly rates cost 2 to 3 times more.

  • Inspections – System diagnostics cost $65 to $180 as part of the call-out service that takes up to 1 hour maximum.

  • Water test – Water testing costs $100 to $300 to check the current ingredients in the water. Regular water tests are important to choose the right filter solution.

  • Repair issue – Replacing multiple parts increases costs compared to cheap and easy fixes like mending a loose connection.

  • Repair vs. replace – Very old systems are typically cheaper to replace than repair.

  • Old system removals – Disconnections cost $40 to $300 extra for taking out a faulty system before installing a new one.

  • Warranty – Many water-filtration companies offer free part replacements under a warranty and sometimes discounted labor rates as well.

  • Permit – A plumbing permit costs $30 to $500 and is necessary in some cities for big jobs altering drainpipes or other connections to city water.

A plumber repairing a home water filtration system.
A plumber repairing a home water filtration system.

Water filtration system maintenance costs

Common water filtration system maintenance costs include fees for filter changes, water tests, and system inspections. Some systems like reverse osmosis (RO) filtration need annual filter changes while others can go several years without changing filters.

Water filter maintenance cost by service type
Service Average cost per filter change*
Water softener resin replacement (every 5 to 10 years) $200 – $400
Water softener annual service (cleaning, inspections, repairs, & refills) $100 – $250
Water softener salt refills (annual cost) $60 – $240+
RO point-of-use system (filter & membrane replacements annually) $100 – $200
RO whole-house system (filter & membrane replacements annually) $200 – $400
Carbon-based system (whole-house) $110 – $550
Carbon, sediment, or iron filter replacement $80 – $245

*Total costs for materials and labor.

Water filtration repair FAQs

What are the signs that my water filtration system needs repairing?

Signs a water filtration system needs repairing include:

  • Water that smells and tastes bad

  • Cloudy or dirty water

  • Strange noises coming from the system pumps

  • Leaks or pooling water

  • Low water pressure

  • System warning lights switching on

  • Scale buildup around pipes and appliances

How long do water treatment systems last?

A water treatment system lasts 10 to 25 years on average when well-maintained. The lifespan depends on the system type, installation quality, and the local water hardness.

Should I repair or replace my water softener?

Replace a water softener that’s 10+ years old or needs repairs that cost more than half of a new system. A new water softener system costs $800 to $2,500 installed.

Getting quotes for water-filtration system repair services

Before hiring a water treatment company near you, be sure to:

  • Get detailed quotes from 3 companies with 5+ years of experience.

  • Verify that the water-filtration companies have licenses, bonds, and insurance.

  • Ask if they have WQA, NSF, or RO-specialist certifications.

  • Read their reviews on Google and HomeGuide.

  • Request a list of references.

  • Get copies of the estimate, contract, and warranty before work starts.

  • Beware of low quotes that can signal low-quality work.

  • Make your last payment only after the project is complete.

Questions to ask

  • How many water filtration systems have you repaired, and which types?

  • Do you offer NSF-certified replacement filters?

  • What’s your minimum service fee, and does it include a water test?

  • Does my system need additional pre-filters to purify my water better?

  • Are any discounts available with an annual maintenance plan?

  • Did the original installer make any mistakes that you need to fix?

  • Should I change the filters on this system more often?

  • Which unexpected problems increase repair costs?

  • If you’re replacing the system, then how long does the new warranty last?

  • Do you offer a labor warranty as well?

  • How long will this installation take?

  • Are you familiar with all local building code requirements for this system?

  • Will I need a permit or city inspection for this repair?

  • Does this bid include all labor, materials, cleanup, and pipe modifications?


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