Pool Inspection: What Gets Checked Before You Buy

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A backyard pool can be the feature that sells a house, and it can also be the most expensive system on the property that nobody looked at closely. Resurfacing a plaster shell, replacing a heater, chasing a plumbing leak under the deck or rebuilding failed electrical bonding can each run into thousands of dollars. Many buyers assume the general home inspection covers the pool. Often it does not, or covers it only lightly. A dedicated pool inspection fills that gap by looking at the structure, equipment, electrical safety, drains, barriers and signs of leaks before the option or inspection period runs out. This guide explains what a pool inspection typically includes, what a standard home inspection excludes, how to hire a qualified pool specialist and what the service tends to cost. Cost figures are general industry estimates, not quotes, and scopes vary by provider.

Part of our Specialty Home Inspections guide — start there for the full picture →

What Is a Pool Inspection and What Does It Cover?

A pool inspection is a visual and operational evaluation of a pool or spa and its equipment, usually performed by a pool service professional or a home inspector with pool training. The goal is to identify safety hazards, deferred maintenance and components near the end of their useful life so buyers can negotiate, budget or walk away. A typical scope includes:

• The shell and interior surface: plaster, pebble, vinyl liner or fiberglass.
• Coping, tile and expansion joints at the pool edge.
• The surrounding deck, including cracks, heaving and trip hazards.
• Pumps, filters, heaters, chlorinators or salt cells, valves and visible plumbing.
• Electrical safety, including visible bonding, grounding and GFCI protection.
• Main drain covers and suction outlets for entrapment hazards.
• Barriers, gates, door alarms and covers.
• Signs of leaks, and sometimes a recommendation for formal leak detection.

Some inspectors operate the equipment through its normal controls, fire the heater and run lights and automation. Others limit the work to what is visible and safe to test. Asking for a written scope before booking avoids surprises.

Shell, Surface, Coping and Decking

Shell and Interior Surface

Plaster and pebble finishes wear over time. Inspectors look for rough spots, etching, staining, delamination (hollow-sounding patches), and cracks. Fine surface crazing is often cosmetic, while cracks that run through the shell, show displacement or line up with leaks may indicate structural movement and call for further evaluation. Vinyl liners are checked for fading, wrinkles, tears and loss of attachment at the track. Fiberglass shells are checked for blistering, cracking and bulging walls.

Coping and Tile

Coping caps the top of the pool wall and transitions to the deck. Loose or cracked coping stones, failed mortar and missing tile along the waterline let water into the bond beam and can become trip and laceration hazards. Damaged expansion joints between coping and deck allow the deck to push against the pool wall as it moves.

Decking and Trip Hazards

Concrete pool decks on the Front Range face freeze-thaw cycles and, in many neighborhoods, expansive clay soils. Inspectors note cracks, heaving or settled sections, uneven edges, slippery finishes and drainage that sends water toward the house or back into the pool. Raised wood decks around above-ground pools or spas get a structural look as well; our guide to deck inspection covers what that involves.

Pumps, Filters, Heaters and Equipment

The equipment pad is where most of a pool’s operating cost and many of its repair bills live. Inspectors typically identify the pump, filter type (sand, cartridge or diatomaceous earth), heater, sanitation system, automation and valves, then note age where labels allow, visible leaks, corrosion, unusual noise, filter pressure, and missing or improvised parts.

Pump type matters for running cost. ENERGY STAR explains that single-speed pumps run at the higher speed needed for tasks such as pool cleaning even during filtration, while certified variable-speed and multi-speed pumps can be programmed to match each task, and it notes that a pool pump can be one of a home’s largest energy users. An older single-speed pump may be worth budgeting to replace even if it still runs.

Heaters deserve particular attention. Gas heaters are checked for sooting, corrosion, vent condition and clearances, and heat pumps for coil condition and operation. Common faults are covered in our guide to pool heater repair. Buyers should also check heater model numbers against recall listings; the CPSC announced a 2026 recall of certain Hayward Universal-HC Series gas pool heaters because they can produce high levels of carbon monoxide.

Electrical Bonding, Grounding and GFCI Protection

Water, metal and electricity together make pool electrical work a life-safety issue. Two concepts come up in nearly every pool inspection:

• Equipotential bonding ties metal parts of the pool and nearby equipment together, such as ladders, handrails, light niches, pump motors and reinforcing steel, so they stay at the same electrical potential. The goal is to prevent shock from voltage differences. Inspectors can usually see only part of the bonding, such as the bonding conductor at the pump and heater, and will note missing, broken or corroded connections.
• GFCI protection shuts off power when it detects current leaking to ground. Electrical codes generally call for ground-fault protection on pool pump circuits, underwater lighting and receptacles near the water, with details that vary by code edition and local adoption.

An inspector will typically test GFCI devices with their test buttons, look for damaged wiring and conduit, check that receptacles have weatherproof covers, and note overhead power lines near the pool. GFCIs that will not reset or trip repeatedly are a common finding; our guide to a GFCI outlet not working explains likely causes. Bonding repairs, panel work and anything involving underwater lights should go to a licensed electrician.

Drain Covers and Entrapment Hazards

Suction outlets, including main drains and some spa outlets, can pull hard enough to trap hair, limbs or bodies against them. The Virginia Graeme Baker Pool and Spa Safety Act is a federal law focused on this hazard. According to the CPSC’s barrier guidelines booklet, the act requires public pools and spas to have anti-entrapment drain covers and other devices where needed; residential pools are not required to install these, but the CPSC highly recommends them. The CPSC’s Pool Safely page also lists warnings about specific drain covers that violate the act.

A pool inspection usually checks that drain covers are present, intact, securely fastened and not visibly cracked or faded, and notes whether covers carry markings showing compliance and service life. Many covers have rated lifespans and need periodic replacement. Inspectors also look for single main drains without additional protection, missing covers on spa suction outlets and loose fittings. A missing or broken drain cover is a stop-swimming condition until it is fixed.

Barriers, Gates and Covers

Barriers protect young children who reach the water without supervision. The CPSC’s Safety Barrier Guidelines for Residential Pools recommend, among other points, a barrier at least 48 inches high, openings that will not pass a 4-inch sphere, and pedestrian gates that open outward from the pool and are self-closing and self-latching. Where the house forms one side of the barrier, the booklet recommends door alarms, a compliant power safety cover or equivalent protection. Our guide to the pool safety fence covers those details. Inspectors typically measure fence height, check gaps and climbable features, test gates and alarms, and evaluate safety covers for tears, missing anchors and proper fit. Local barrier codes on the Front Range vary, so a deficiency against CPSC guidance may or may not be a code violation.

Leaks, Water Loss and Water Quality

Every pool loses some water to evaporation, which can be significant in Colorado’s dry, sunny summers. Inspectors look for clues that loss is more than evaporation: wet soil or soft spots around the pool, cracks near fittings, separated tile, settling decks, an auto-fill that runs constantly, or a pump that draws air. A visual inspection cannot confirm or rule out an underground plumbing leak. When signs point to one, a specialist can pressure-test lines and use acoustic or dye methods, as described in our guide to pool leak detection.

Water condition can also reveal neglect. Cloudy or green water, heavy staining or dark spots on surfaces may simply mean the pool was not maintained during the listing period, though persistent growth deserves a closer look; see our guide to black mold in a pool for what those dark spots usually are. Pools inspected in winter are often closed and covered, which limits what can be evaluated; buyers may want a holdback or seller warranty for items that cannot be tested until spring.

Spas, Hot Tubs and Water Features

Attached spas share the pool’s equipment and plumbing, while portable hot tubs have their own self-contained pump, heater and controls. Either way, they are worth including in the scope. Inspectors look at the shell or acrylic surface, jets and suction fittings, the heater and controls, the cover and its locking straps, and the electrical supply. Portable hot tubs typically need a dedicated circuit with a ground-fault protected disconnect located within sight of the tub, and a cover that is torn, waterlogged or missing its locks is both a heat-loss problem and a safety problem. The CPSC barrier guidelines define a pool to include spas and hot tubs, so the same barrier thinking applies to a tub on a deck.

Waterfalls, fountains, slides and diving boards add more to check. Slides and boards should be securely anchored and in good condition, and buyers should ask whether the pool’s depth and geometry suit any diving equipment present. Inspectors often recommend that the manufacturer’s installation requirements be confirmed by a pool contractor rather than rendering an opinion on diving safety themselves.

Front Range Considerations: Freeze Damage and Seasonal Timing

Colorado’s climate shapes what a pool inspection finds. Hard freezes can crack plumbing, pump housings, filter tanks and heater headers that were not drained properly in fall. Skimmer throats are a classic freeze-damage point, and a cracked skimmer often shows up as water loss down to the skimmer opening. Freeze-thaw cycles also push on coping and tile, and expansive soils common in parts of Douglas, Arapahoe and Jefferson counties can move decks and pool walls over time.

Timing matters as well. A home listed between October and April will often have a closed pool under a winter cover with the equipment drained. In that case, an inspector can still look at visible equipment, the deck, coping, barriers and electrical components, and can sometimes lift a cover corner to view the water and surfaces. Operating tests, leak checks and a full surface evaluation may have to wait. Buyers in that situation often negotiate a repair escrow, a seller credit or a home warranty that includes pool equipment, and schedule a full opening and evaluation in spring.

Reading the Report and Negotiating Repairs

A pool inspection report usually sorts findings into safety items, functional defects and maintenance or end-of-life notes. Safety items, such as missing drain covers, bonding problems, GFCI failures, broken gate latches or a heater with venting damage, deserve priority in any repair request because they affect people rather than just budgets. Functional defects, such as a leaking pump seal, a failed heater or a cracked filter tank, are typical candidates for seller repair or a credit. End-of-life items, such as a worn plaster surface or an aging single-speed pump, are usually budgeting information rather than negotiating leverage, although large items can still shape an offer.

When requesting repairs, attach the relevant pages and photos, ask for licensed contractors on electrical and gas work, and request receipts. For major items such as resurfacing or replacing a heater, a contractor’s written estimate before the objection deadline gives buyers a realistic number to work with.

What a General Home Inspection Excludes

The ASHI Standard of Practice, a widely used minimum standard for home inspections, lists recreational facilities among the items inspectors are not required to inspect, and its glossary defines recreational facilities to include spas, saunas, steam baths and swimming pools. It also lists fences among exterior items inspectors are not required to inspect. ASHI publishes a separate auxiliary Residential Pool and Spa Standard for inspectors who offer pool evaluations. State rules and individual inspectors’ agreements vary, so buyers should read the inspection agreement to see whether the pool is included, excluded or available as an add-on.

In practice, a general inspector may note obvious hazards visible near the pool, such as a missing GFCI cover or an open gate, while disclaiming the pool itself. That is why many buyers schedule a separate evaluation. Our overview of specialty inspections explains how add-on services fit into a purchase timeline.

Hiring a Pool Specialist and What It Costs

Good candidates include pool service companies that perform pre-purchase evaluations and home inspectors with documented pool training who follow a published pool standard. Questions worth asking:

• Will you operate the pump, filter, heater, lights and automation, or only inspect visually?
• Do you check bonding and GFCI protection, and do you recommend an electrician when you find issues?
• Do you inspect drain covers and record their markings?
• Do you evaluate barriers, gates and door alarms against local requirements?
• Is leak detection included, or a separate service?
• When will the written report arrive, and does it include photos?

Scheduling deserves attention too. Contract deadlines on the Front Range are often tight, and pool specialists get busy in late spring. Booking the pool evaluation for the same day as the general home inspection, or within a day or two, leaves time to get repair estimates. Make sure utilities are on, the pool is filled to its normal level and the equipment area is accessible, since an inspector cannot evaluate what cannot be reached or run.

As rough industry estimates, a pool add-on to a home inspection often costs from about one hundred to a few hundred dollars, while a standalone evaluation by a pool specialist can run somewhat higher, especially with spas, heaters or automation. Formal leak detection and pressure testing usually cost extra. Compared with the price of resurfacing or replacing equipment, the inspection is modest insurance. For broader advice on choosing and scheduling inspectors, see our guide to hiring a home inspector.

References

• ASHI Standard of Practice for Home Inspections — American Society of Home Inspectors
• Safety Barrier Guidelines for Residential Pools (Publication 362) — U.S. Consumer Product Safety Commission
• PoolSafely.gov Drowning and Entrapment Prevention Updates — U.S. Consumer Product Safety Commission
• ENERGY STAR Certified Pool Pumps — ENERGY STAR
• Hayward Industries Recalls Universal Pool Heaters Due to Carbon Monoxide Poisoning Hazard — U.S. Consumer Product Safety Commission

Buying a Front Range home with a pool or spa? Send us a note and we can help line up a local inspector and pool specialist before your inspection objection deadline.