Cost guide · updated October 2026
Pool Resurfacing and Repair Cost in Walnut Creek
Resurfacing a typical pool costs about $6,000–$15,000+, leak detection averages about $300, and a replacement pump runs $700–$4,000+, based on national data from Angi.
Every figure below links to its source. They are national numbers; a real Walnut Creek–area quote can land below or above them.
Quick answer
Cost by job at a glance
| Job | Typical cost | Source |
|---|---|---|
| General pool repair | $243–$1,212+ (average about $725) | Angi |
| Resurfacing a typical pool | $6,000–$15,000+ | Angi |
| Leak detection | $100–$1,000+ (average about $300) | Angi |
| Pump replacement | $700–$4,000+ (average about $1,300) | Angi |
| Heater repair | $160–$730+ | Angi |
| Tile replacement | $3,000–$20,000+ for most projects | Angi |
| Pool remodel | $5,597–$15,771+ for most projects | Angi |
Resurfacing
Resurfacing cost by finish and pool size
| Finish | Cost per sq ft | Lifespan |
|---|---|---|
| Paint | About $1 | 2–5 years |
| Plaster | About $4 | About 10 years |
| Pebble aggregate | About $10 | 20+ years |
| Tile (full interior) | $4–$30+ | Longest |
Figures from Angi's resurfacing guide. To answer the common gallon questions, here is the finish-rate arithmetic for three typical pool shapes. Interior surface = floor plus walls.
| Example pool | Interior surface | Plaster at ~$4/sq ft | Pebble at ~$10/sq ft |
|---|---|---|---|
| About 10,000 gal (12 × 24 ft, 4.5 ft average depth) | About 610 sq ft | About $2,400 | About $6,100 |
| About 20,000 gal (16 × 36 ft, 5 ft average depth) | About 1,100 sq ft | About $4,400 | About $11,000 |
| 20 × 40 ft (5 ft average depth, about 30,000 gal) | About 1,400 sq ft | About $5,600 | About $14,000 |
Leaks
Leak detection and repair cost
| Item | Typical cost | Source |
|---|---|---|
| Leak detection, average | About $300 | Angi |
| In-ground pool leak detection | $400–$1,000+ | Angi |
| Plumbing pressure test | $200–$500+ | Angi |
| Main drain repair | $100–$250+ | Angi |
| Pool light repair | $65–$150+ per light | Angi |
Underground plumbing repairs vary most, because cost depends on where the break is and what sits on top of it (deck, landscaping). How leak detection works →
Equipment
Pump, heater and filter cost
| Item | Typical cost | Source |
|---|---|---|
| Pump replacement (installed) | $700–$4,000+ | Angi |
| Variable-speed pump (unit) | $800–$2,500+ | Angi |
| Pump installation labor | $200–$500+ | Angi |
| Pump motor repair only | $50–$300+ | Angi |
| Heater repair | $160–$730+ | Angi |
| New pool heater | $1,800–$4,100+ | Angi |
| Filter replacement | $1,500–$2,000+ | Angi |
Replacement pump motors of 0.5 hp or more must be variable-speed in California. Equipment repair and the Title 20 rule →
Tile and coping
Tile and coping cost
Remodels
Pool remodel cost
| Item | Typical cost | Source |
|---|---|---|
| Most remodel projects | $5,597–$15,771+ (average about $10,484) | Angi |
| Full range by scope | $1,600–$30,000+ | Angi |
| Pool deck | $2,250–$12,000+ | Angi |
| Pool lighting | $450–$1,700+ | Angi |
| Draining and refilling | $30–$100+ per 1,000 gallons | Angi |
Adding a spa, changing the shape or adding safety features can push a remodel well past these figures. Planning a remodel →
Why quotes differ
What moves the price
- Surface area and finish: pebble costs about two and a half times plaster per square foot.
- Prep: a full chip-out costs more than a bond coat over sound plaster.
- Access: hillside lots in Lafayette, Orinda and the Walnut Creek hills can mean longer hose runs, hand-carried material or a pump truck.
- Add-ons: waterline tile, coping, lights and fittings done at the same time.
- Equipment brand and size: variable-speed pumps and heat pumps vary widely.
- Permits and HOA review: Blackhawk and other HOAs can add time; building permits add fees.
Compare quotes
How to compare two quotes fairly
- Same scopeLine up finish brand and type, square footage, prep method, tile and coping on both quotes.
- Who drains and refillsCheck that the Central San permit, draining and refill water are included or priced.
- Start-upAsk who does the first weeks of brushing and chemistry, and whether the finish warranty depends on it.
- License and paymentConfirm the C-53 license on CSLB and keep deposits small and tied to progress.
More in choosing a pool contractor.
Answers
Questions people ask
How much does it cost to resurface a 20,000-gallon pool?
A 20,000-gallon pool has roughly 1,100 sq ft of interior surface: about $4,400 in plaster or $11,000 in pebble at Angi’s per-sq-ft rates, before draining, prep and add-ons.
Is pool leak detection expensive?
Usually not compared with the water and damage a leak causes. Angi puts the average around $300, with in-ground pools at $400–$1,000+.
How much does a new pool pump cost?
Angi’s national range is $700–$4,000+ installed, with variable-speed units at $800–$2,500+ for the pump itself.
Why are Bay Area quotes different from national averages?
Labor rates, access, permits and finish choices vary by area. Use national numbers to sanity-check a quote, then compare local quotes for the same scope.
Keep going
Related repairs and guides
Next step
Tell a local pool pro what the pool is doing
Share the symptoms, the pool type and your city. A local pool repair contractor can follow up with questions, next steps and pricing.
- Resurfacing, leaks, equipment, tile and remodels
- Walnut Creek, Danville, Alamo, Lafayette and nearby
- Ask for a written scope before any work starts
Prefer to talk? (925) 574-5921