Pool installation: what to know

What the job involves, what changes the price, and what to ask a pro.

What pool installation is

Pool installation builds an in-ground pool from excavation through the finished shell, plumbing, equipment, electrical bonding and decking. Most owners plan for it months ahead, because the job runs through design, permit and inspection steps before the pool can be filled and used.

Signs you need it

  • You want a permanent in-ground swimming pool and your yard has room for one
  • The site needs grading, drainage or soil work before a shell can go in
  • You are choosing between vinyl, fiberglass, concrete or gunite for a specific use
  • You need a shell type that suits your soil, water table and climate
  • You want the pool designed to match a planned deck, fence or landscape
  • You are ready to deal with permits, setback rules and utility locates before digging

What the pro does

  • Survey the site, set the layout and confirm the buried utility lines before any digging starts
  • Excavate the hole and build the base, including the forms, steel and shell structure
  • Install the main drain, skimmer, return lines and buried plumbing, then pressure test the lines before backfill
  • Set the equipment pad and mount the pump, filter, heater and cleaner connections
  • Bond the metal parts and bring in the electrical circuits through a licensed electrician
  • Finish the coping, deck, fence and safety features, then fill, balance and start up the pool

What changes the price

Every job is different, so we do not publish prices. These are the things that move the quote up or down.

  • Shell type, such as vinyl, fiberglass, concrete or gunite, each with different materials and labor
  • Size, depth and shape, including features like spas, steps, benches or waterfalls
  • Soil condition, rock, groundwater level and the grading needed to build the site
  • Access for excavation equipment, including fences, gates, trees and slopes
  • Permit and inspection requirements, which vary by local office and set the timing
  • Electrical service, the distance from the house panel and any new circuits needed
  • Decking, fencing, lighting and landscape restoration you want included

What a written quote should spell out

  • The shell type, dimensions, depth and finish, with the material or manufacturer named
  • A line for excavation, hauling, backfill and site restoration
  • Equipment listed by model, including pump, filter, heater, cleaner and controls
  • Electrical and gas work listed as separate lines for the licensed trades doing it
  • Permit fees, inspection visits and who is responsible for scheduling them
  • The start-up service, first fill and first chemical balance, and the warranty terms

Questions to ask before you hire

  • Who will hold the permit and schedule each inspection?
  • Which shell type do you recommend for my soil and water table, and why?
  • How do you handle utility locates and call-before-you-dig requirements?
  • Will you handle the electrical bonding and gas work, or do I need separate trades?
  • What does the warranty cover for the shell, the plumbing and the equipment?
  • What happens if the dig turns up rock, groundwater or an old buried tank?
  • How long will the site be open, and how will you protect the yard and the neighbors?

Red flags

  • They start digging before the permit or the utility locate is finished
  • They cannot name the shell manufacturer or material they plan to use
  • They skip the pressure test on the plumbing before backfill
  • They want full payment before the design and permit are approved
  • They promise a finish date without mentioning inspections or weather

What you can do yourself

A homeowner can plan the layout, choose the finish and decide on fencing, decking and landscaping, and can clear the site of obstacles before the crew arrives. Do not dig near buried lines before the locate is done, and do not work on the pool's electrical or gas connections, because those need licensed trades. Call a pro for every step from excavation through start-up.

Licenses and permits

Pool construction is commonly done by licensed contractors, and the electrical, gas and plumbing parts usually need licensed trades and permits. Check with your state or local licensing agency for the contractor and trade licenses that apply, and with your local building office for the permits your project needs.

Pool installation questions

How long does a pool installation take?

The timeline depends on design approval, permits, weather, the shell type and inspection schedules. The build phase itself can be short, while approvals take longer. Ask the pro for a schedule that shows each inspection and each wait point.

Do I need a permit for an in-ground pool?

Many areas require permits for in-ground pools, and they often require separate permits for electrical, plumbing and fencing. Your local building office or your state or local licensing agency can tell you which permits apply to your address.

What shell type is best?

No single shell is best for every yard. Soil, groundwater, pool shape, budget and how you plan to use the pool all matter, so ask the pro to explain the trade-offs for your site.

About this guide

This national guide is written and checked by infinibell. Rules and conditions differ by place, so local pros are credited on guides for the cities they serve, not on national ones.

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