Small rectangular pool surrounded by stone paving and trees

Pool Plan Compass · Compare options

Pool and spa comparisons, decided by your conditions

Six comparisons cover the decisions that change a pool proposal the most: shell type twice, spa type, deck material, sanitizer and heating fuel. Each lines the two options up on cost, lifespan, maintenance, appearance, climate fit, install time, resale and best use, then says under which conditions each one wins. None declares a universal winner.

See the comparisons

Photo: Adheesha Paranagama · License.

Every pool decision is a trade between upfront cost, operating cost, time and what the yard allows. Gunite buys freedom and costs months; fiberglass buys weeks and costs freedom. River Pools' 2025 guide frames the timeline as 2–6 weeks vs 3–6 months, and HomeAdvisor's 2026 table prices the shells at $65,000–$120,000 for gunite against $25,000 to $60,000 for fiberglass. Neither number decides it for you; your crane access and your patience do.

The comparisons below are built from the same sources as the rest of the site. Read the verdicts, then take the quiz to check the decisions still open, and run the calculator with each option to see the dollar difference on your size.

The 6 decisions that move the price most

Long pool beside a covered outdoor living area

Gunite (concrete) pool vs Fiberglass pool

Gunite is a custom concrete shell built in place over months, with any shape and an integrated spa, and an interior that is resurfaced every 10 to 15 years. Fiberglass is a factory shell set in weeks, with a smooth, low-chemical surface and shapes limited to the manufacturer's molds and the crane's reach.

Upfront cost: $65,000 to $120,000 installed (HomeAdvisor 2026); $50,000 to $120,000+ (Thursday Pools 2026); $25,000 to $60,000 (HomeAdvisor 2026); about $74,000 to $113,000 by size (Thursday Pools 2026); $60,000 to $100,000 basic install (River Pools)
Lifespan and recurring cost: Shell lasts decades; resurfacing every 10 to 15 years at $10,000 to $20,000 (River Pools); Shell lasts decades; gelcoat rarely refinished; no liner
Maintenance: Plaster is porous and alkaline; more brushing, acid and algae attention; Smooth non-porous surface; lower chemical use and less brushing

Full comparison, verdict and FAQs →

Long swimming pool with palm trees and a sea view

Fiberglass pool vs Vinyl liner pool

Both are faster and cheaper than gunite. Fiberglass costs more upfront and has no liner to replace; vinyl costs the least to build and carries a liner that River Pools says is replaced every 5 to 10 years. In freeze regions both are common, and the choice is usually total cost over fifteen years against upfront budget.

Upfront cost: $25,000 to $60,000 (HomeAdvisor 2026); about $74,000 to $113,000 by size (Thursday Pools 2026); $20,000 to $40,000 (HomeAdvisor 2026); $35,000 to $80,000 (Thursday Pools 2026)
Lifespan and recurring cost: Shell decades; no liner; Structure decades; liner every 5 to 10 years at roughly $6,000 to $10,000 (River Pools)
Maintenance: Smooth surface, low chemical demand; Soft surface; liner can be punctured by pets, toys or sharp objects; wrinkles from chemistry

Full comparison, verdict and FAQs →

Overhead view of a pool, covered hot tub, loungers and timber deck seating

In-ground spa vs Portable hot tub

An in-ground spa is a small pool: excavated, plumbed to an equipment pad, finished in tile or plaster, and often attached to a pool as a spillover. A portable hot tub is an acrylic appliance on a pad with a dedicated circuit. HomeAdvisor's 2026 averages are $15,000 for in-ground and $6,000 for portable.

Upfront cost: $5,000 to $25,000, avg $15,000; custom above $35,000 (HomeAdvisor 2026); $2,000 to $11,000, avg $6,000 (HomeAdvisor 2026); $2,300 install labor
Lifespan: Shell lasts decades; finish refreshed with the pool; 5 to 20 years depending on build quality (Fixr 2025)
Maintenance: Shares pool chemistry and equipment; heats slower when large; Self-contained; $500 to $1,000 a year (HomeAdvisor); drain every 3 to 4 months

Full comparison, verdict and FAQs →

Indoor pool alongside floor-to-ceiling glazing

Poured concrete deck vs Paver or travertine deck

Concrete is poured as one slab, cheapest at Concrete Network's $6 to $11 per square foot for broom finish, and cracks where joints are missed. Pavers and travertine are set on a base at $12 to $45 per square foot, stay cooler, drain through the joints and can be lifted and reset.

Upfront cost: $6 to $11 broom; $11 to $18 stamped; $18+ elaborate (Concrete Network 2026); $12 to $45 per sq ft stone pavers (Concrete Network); $20 to $50+ luxury stone (River Pools)
Lifespan: Decades; cracks and surface wear over time; Decades; individual units replaceable
Maintenance: Seal every 2 to 3 years; joint sealant at coping; Joint sand top-up; seal near water; occasional reset of settled units

Full comparison, verdict and FAQs →

Swimming pool facing a white house and outdoor seating

Saltwater chlorine generator vs Traditional chlorine

A salt system makes chlorine from dissolved salt in a cell on the equipment pad, so the water is chlorinated but feels softer and needs fewer chemical purchases. Traditional chlorine is dosed by tablets or liquid. HomeAdvisor's 2026 guide prices a conversion at $500 to $2,500 and salt-and-chemical costs around $100 a year.

Upfront cost: $1,008 to $2,620 added to a new build (Fixr 2024); conversion $500 to $2,500 (HomeAdvisor 2026); Chlorinator or feeder $100 to $500
Lifespan: Cell replaced every 5 to 7 years at $200 to $700 (Fixr / Bob Vila); Feeder lasts years; consumables ongoing
Maintenance and consumables: About $100 a year salt and chemicals (HomeAdvisor); cell cleaning; ~$50 a year electricity; Several hundred dollars a year in tablets or liquid; regular dosing

Full comparison, verdict and FAQs →

Competition lap pool with lane ropes and tiled lane markings

Natural gas heater vs Electric heat pump

A gas heater burns fuel and heats fast at any air temperature; a heat pump pulls heat from the air and heats slowly but cheaply when the air is warm. EIA's 2024 survey found 16% of U.S. pool homes heat with natural gas and 13% with electricity, with 60% unheated; the choice depends on how and when you swim.

Upfront cost: $1,500 to $6,000 installed (HomeAdvisor 2026); needs gas line sized for 200,000 to 400,000 BTU; $2,500 to $7,500 installed (HomeAdvisor 2026); needs 50-amp circuit
Lifespan: 7 to 12 years (HomeAdvisor); 10 to 15 years typical; fewer combustion parts
Operating cost: $800 to $6,000 a year natural gas; propane to $12,000 (Fixr 2025); $200 to $1,800 a year (Fixr 2025)

Full comparison, verdict and FAQs →

Why do these six decisions matter more than finish and tile?

Because they change the structure, the equipment pad and the operating bill, and they cannot be changed after the shell is in. A tile color can be swapped at the showroom. A shell type cannot. A heater fuel can be changed later but only by running a gas line or a 50-amp circuit under a finished deck. A salt system can be added later for HomeAdvisor's $500 to $2,500 conversion cost, but the deck material next to it should have been chosen with salt in mind.

The operating side is where the long-term money sits. Pool Goods' 2026 modeling shows a variable-speed pump saving $345–$735 per year a year against a single-speed, yet by our analysis of EIA's 2024 survey 48.2% of pool homes still report no variable-speed pump. HomeAdvisor puts annual maintenance at $960–$1,800 per year. Over fifteen years the equipment and sanitizer decisions add up to more than the difference between two tile lines.

How should you read the comparison tables?

Each row is a factor; each cell is a sourced range or a plain statement. Where a source has a commercial interest, such as a fiberglass builder describing concrete, the text says so. The 'best for' row is the summary: who should choose this option. The verdict paragraphs after the table describe the conditions that flip the decision, which is what a site visit will determine.

Use the tables with your own constraints in hand: months of use from the regional notes (our analysis of EIA's 2024 survey found 47.7% of pool homes swim all year and 41.9% one to six months), access width from your gate, panel capacity from a photo. A comparison without your constraints is a magazine article; with them it is a decision.

What does each option cost to own over fifteen years?

Upfront price is the number in the proposal; ownership cost is the number in your bank statement. A gunite interior resurfaced once or twice at River Pools' $10,000 to $20,000, a vinyl liner replaced twice at $6,000 to $10,000, a gas heater at Fixr's $800 to $6,000 a year against a heat pump's $200 to $1,800, and a salt cell at $200 to $700 every five to seven years are each larger than the price difference between two coping profiles. Put those lines into the comparison before you choose.

HomeAdvisor's annual maintenance range is the baseline every pool pays; the choices in these six comparisons move it up or down by several hundred dollars a year. Over fifteen years that is the price of the spa you decided not to build, or the cover you did. The design and build page shows where each of these lines sits in a complete proposal.

Homeowner polls

Which option are homeowners picking?

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Which shell type are you leaning toward?

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Which sanitizer do you plan to use?

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How do you plan to heat the pool?

EIA's 2024 survey found 60% of U.S. pool homes report an unheated pool.

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Comparison questions

Which comparison should I read first?

Shell type, because it changes everything else: the timeline, the equipment pad, the finish cycle and the crane question. Gunite versus fiberglass if you have a custom shape in mind or a difficult site; fiberglass versus vinyl if the budget is the constraint. Then heating and sanitizer, then deck.

Do the comparisons account for my region?

Each has a climate-fit row and the verdicts reference regional data from EIA's 2024 survey where it applies, such as year-round use in the West or heating fuel shares. For a fuller regional picture, read the locations page alongside the comparison.

Why are some sources builders or manufacturers?

Because they publish the best timeline and equipment data. River Pools and Thursday Pools build fiberglass, Pentair makes pumps, and each is identified as such in the text so you can weigh the point of view. Where a neutral cost guide exists, it is cited alongside.

Can I compare more than two options?

Read two pairs. Gunite versus fiberglass and fiberglass versus vinyl together cover all three shells, and the calculator lets you run each shell on your size to see the dollar spread. The quiz then tells you which decision is still open.

How current are the numbers?

Most are from 2025 and 2026 cost guides, with EIA's 2024 survey data released in 2026 and CPSC's 2026 report. Each figure carries its year. When a source updates, the comparison is updated to match.

What if a builder disagrees with a comparison?

Ask for the specifics. A builder who says fiberglass cannot work on your lot may be right about the crane; one who says gunite always lasts longer should be asked about resurfacing cycles. The comparisons are a national reference; the builder is looking at your yard. Both can be right.

Is there a comparison for water features?

Not as a table, because feature choice is mostly about sound and access rather than cost trade-offs. The water features page covers sheer descents, bubblers, deck jets, scuppers and rock waterfalls with cost, noise and plumbing notes for each.

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Go deeper on a service

Service guideCustom Pool Design & Build
Custom pool design and build covers everything from the site plan to first swim: excavation, the shell in gunite, fiberglass or vinyl, equipment and plumbing, electrical and bonding, the barrier, startup and training.
Service guideSpa & Hot Tub Installation
Spa and hot tub installation covers the base, the delivery route, the dedicated electrical circuit with GFCI protection, drainage around the unit, and the cover and access arrangement that make it usable every week.
Service guideWater Features & Waterfalls
Water features add sound and motion to a pool through sheer descents, bubblers, deck jets, scuppers, spillover spas or rock waterfalls.
Service guidePool Decking & Coping
Pool decking and coping form the transition from water to yard: the coping caps the bond beam and the deck carries foot traffic and sheds water.

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Pool and spa comparisons, decided by your conditions

See the comparisons

The 6 decisions that move the price most

Gunite (concrete) pool vs Fiberglass pool

Upfront cost: $65,000 to $120,000 installed (HomeAdvisor 2026); $50,000 to $120,000+ (Thursday Pools 2026); $25,000 to $60,000 (HomeAdvisor 2026); about $74,000 to $113,000 by size (Thursday Pools 2026); $60,000 to $100,000 basic install (River Pools)
Lifespan and recurring cost: Shell lasts decades; resurfacing every 10 to 15 years at $10,000 to $20,000 (River Pools); Shell lasts decades; gelcoat rarely refinished; no liner
Maintenance: Plaster is porous and alkaline; more brushing, acid and algae attention; Smooth non-porous surface; lower chemical use and less brushing

Full comparison, verdict and FAQs →

Fiberglass pool vs Vinyl liner pool

Upfront cost: $25,000 to $60,000 (HomeAdvisor 2026); about $74,000 to $113,000 by size (Thursday Pools 2026); $20,000 to $40,000 (HomeAdvisor 2026); $35,000 to $80,000 (Thursday Pools 2026)
Lifespan and recurring cost: Shell decades; no liner; Structure decades; liner every 5 to 10 years at roughly $6,000 to $10,000 (River Pools)
Maintenance: Smooth surface, low chemical demand; Soft surface; liner can be punctured by pets, toys or sharp objects; wrinkles from chemistry

Full comparison, verdict and FAQs →

In-ground spa vs Portable hot tub

Upfront cost: $5,000 to $25,000, avg $15,000; custom above $35,000 (HomeAdvisor 2026); $2,000 to $11,000, avg $6,000 (HomeAdvisor 2026); $2,300 install labor
Lifespan: Shell lasts decades; finish refreshed with the pool; 5 to 20 years depending on build quality (Fixr 2025)
Maintenance: Shares pool chemistry and equipment; heats slower when large; Self-contained; $500 to $1,000 a year (HomeAdvisor); drain every 3 to 4 months

Full comparison, verdict and FAQs →

Poured concrete deck vs Paver or travertine deck

Upfront cost: $6 to $11 broom; $11 to $18 stamped; $18+ elaborate (Concrete Network 2026); $12 to $45 per sq ft stone pavers (Concrete Network); $20 to $50+ luxury stone (River Pools)
Lifespan: Decades; cracks and surface wear over time; Decades; individual units replaceable
Maintenance: Seal every 2 to 3 years; joint sealant at coping; Joint sand top-up; seal near water; occasional reset of settled units

Full comparison, verdict and FAQs →

Saltwater chlorine generator vs Traditional chlorine

Upfront cost: $1,008 to $2,620 added to a new build (Fixr 2024); conversion $500 to $2,500 (HomeAdvisor 2026); Chlorinator or feeder $100 to $500
Lifespan: Cell replaced every 5 to 7 years at $200 to $700 (Fixr / Bob Vila); Feeder lasts years; consumables ongoing
Maintenance and consumables: About $100 a year salt and chemicals (HomeAdvisor); cell cleaning; ~$50 a year electricity; Several hundred dollars a year in tablets or liquid; regular dosing

Full comparison, verdict and FAQs →

Natural gas heater vs Electric heat pump

Upfront cost: $1,500 to $6,000 installed (HomeAdvisor 2026); needs gas line sized for 200,000 to 400,000 BTU; $2,500 to $7,500 installed (HomeAdvisor 2026); needs 50-amp circuit
Lifespan: 7 to 12 years (HomeAdvisor); 10 to 15 years typical; fewer combustion parts
Operating cost: $800 to $6,000 a year natural gas; propane to $12,000 (Fixr 2025); $200 to $1,800 a year (Fixr 2025)

Full comparison, verdict and FAQs →

Why do these six decisions matter more than finish and tile?

How should you read the comparison tables?

Competition lap pool with lane ropes and tiled lane markingsPhoto: Marcelo Uva · License

What does each option cost to own over fifteen years?

Comparison questions

Which comparison should I read first?

Do the comparisons account for my region?

Why are some sources builders or manufacturers?

Can I compare more than two options?

How current are the numbers?

Most are from 2025 and 2026 cost guides, with EIA's 2024 survey data released in 2026 and CPSC's 2026 report. Each figure carries its year. When a source updates, the comparison is updated to match.

What if a builder disagrees with a comparison?

Is there a comparison for water features?

Go deeper on a service

Long rectangular pool with a paver deck, stone-faced spa corner and covered patio of a white two-storey house

Service guideCustom Pool Design & Build

Custom pool design and build covers everything from the site plan to first swim: excavation, the shell in gunite, fiberglass or vinyl, equipment and plumbing, electrical and bonding, the barrier, startup and training.

Hot tub set into a raised flagstone platform with boulders and plantings on a lawn below a wood deck

Service guideSpa & Hot Tub Installation

Spa and hot tub installation covers the base, the delivery route, the dedicated electrical circuit with GFCI protection, drainage around the unit, and the cover and access arrangement that make it usable every week.

Sheet of water spilling from a green glass-tile wall into a pool, with a stone planter blurred behind

Service guideWater Features & Waterfalls

Water features add sound and motion to a pool through sheer descents, bubblers, deck jets, scuppers, spillover spas or rock waterfalls.

Rectangular pool with a wide beige stamped-stone deck and bullnose coping in front of a white cottage

Service guidePool Decking & Coping

Pool decking and coping form the transition from water to yard: the coping caps the bond beam and the deck carries foot traffic and sheds water.