Custom Pool Builder in New Berlin, WI | Loomis Pools

New Berlin backyards are some of the most pool-ready lots in Waukesha County. Large lot sizes, mature tree lines, and rolling terrain give homeowners real design options, and Loomis Pools is the custom pool builder New Berlin WI residents call when they’re ready to turn that potential into a finished inground pool. We design and build custom pools, integrated spas, and complete outdoor living spaces across southeastern Wisconsin, and we know exactly what it takes to build right on New Berlin’s clay-heavy soils and varied grades.

If you’re in the research-to-decision phase and want straight answers from a builder who works in your neighborhood, you’re in the right place. Learn more about our SE Wisconsin pool contracting work, or keep reading to see exactly how we approach a New Berlin build from first call to final dive.

Ready to see what your backyard can become? Schedule your free New Berlin design consultation today.

Why New Berlin Homeowners Choose Loomis Pools for Custom Inground Pools

New Berlin sits in the heart of Waukesha County, about 15 miles southwest of Milwaukee, and it has a distinct character that shapes every pool project: generous lot sizes, established neighborhoods with mature landscaping, and terrain that ranges from gently sloping to genuinely hilly. Those variables matter a lot when you’re choosing a builder.

Loomis Pools has been designing and installing custom inground pools across southeastern Wisconsin long enough to understand the local soil profile. SE Wisconsin clay is dense, slow-draining, and requires careful excavation and backfill planning. A builder who doesn’t account for that will cut corners that show up as shifting pool walls or drainage problems later. We build for the ground we’re actually working in.

Beyond technical know-how, homeowners choose us because we’re genuinely consultative. We don’t hand you a catalog and ask you to pick a shape. We look at your specific lot, your grade changes, your existing landscaping, and your goals, then design something that fits. Whether you’re envisioning a classic rectangular lap pool on a flat western-neighborhood lot or a freeform design built into a hillside in New Berlin’s eastern corridors, we’ve built projects like yours before.

Local knowledge of Waukesha County permitting and inspection timelines
Experience excavating and building on clay-heavy SE Wisconsin soil
Full-service design, excavation, plumbing, electrical, and finish work under one contract
A portfolio of inground pools, integrated spas, and outdoor living spaces across the region

If you want to know the five questions worth asking any builder before you sign, our guide on what to ask pool builders near you is a good starting point.

Our Custom Pool Design Process: From First Sketch to Final Dive

Every Loomis pool starts with a site visit, not a sales pitch. We schedule a free consultation at your New Berlin property so we can walk the yard, assess the grade, note the proximity of utilities and existing structures, and have an honest conversation about what will work and what won’t.

From there, our design process moves through several clear stages:

Site assessment and wish-list meeting: We talk through how you plan to use the pool, how many people will use it regularly, whether you want a spa, water features, or specific decking materials, and what your budget range looks like. No pressure, just information gathering.
Concept design: We produce a scaled design that reflects your lot’s specific dimensions and grade. For hillside lots, this stage often includes a retaining or terracing plan so the pool integrates naturally with the landscape rather than looking dropped in.
Material and finish selections: Vinyl liner, fiberglass, or gunite/concrete, each has trade-offs in cost, customization, and long-term performance. We walk you through the options relevant to your project size and goals.
Permit and engineering submissions: We handle permit applications with the City of New Berlin and coordinate any required engineering reviews, which are common for projects involving significant grade changes or retaining walls.
Build: Excavation, steel or panel installation, plumbing and electrical rough-in, shell installation, coping, decking, and finish work, all sequenced to hit your target completion date.

Most homeowners who work with us say the design phase is where the project really comes alive. Seeing your actual backyard reflected in a scaled plan, with real dimensions and real material choices, makes the whole thing feel concrete. Read more about what it looks like to build a pool in a SE Wisconsin backyard.

Pool Types We Build in New Berlin, WI

Loomis builds three primary pool types, and the right choice depends on your lot, your design goals, and your budget.

Vinyl Liner Pools

Vinyl liner inground pools are the most popular choice in southeastern Wisconsin, and for good reason. They’re cost-effective to install, highly customizable in shape, and the liner can be replaced when it reaches the end of its life (typically 10 to 15 years) without rebuilding the pool structure. For New Berlin homeowners who want a large, custom-shaped pool at a manageable entry cost, vinyl liner is usually the starting conversation.

Fiberglass Pools

Fiberglass pools arrive as a pre-manufactured shell that’s set into the excavated hole in a single installation day. They’re smooth, durable, and generally faster to install than poured concrete. The trade-off is shape: you’re choosing from the manufacturer’s available molds, which limits customization. For homeowners with a more standard lot and a defined budget, fiberglass can be an excellent fit. See our breakdown of fiberglass pool pros and cons for SE Wisconsin conditions.

Gunite / Concrete Pools

Gunite pools offer the highest degree of design freedom. Any shape, any depth profile, any combination of built-in features. They’re also the most significant investment, typically starting at $80,000 to $100,000+ for a full custom build in Waukesha County. If you’re designing a resort-style backyard with a vanishing edge, attached spa, and custom tiling, gunite is almost certainly the right material.

Not sure which type fits your New Berlin backyard? Our small backyard pool ideas resource has some useful guidance if your lot presents size or access constraints, and we’re always happy to talk through the trade-offs directly.

Want to see which pool type makes the most sense for your specific lot and budget? Request your free New Berlin consultation and we’ll walk you through it.

Integrated Outdoor Living: Spas, Water Features, and Hardscaping

A pool is the centerpiece, but the space around it is where you actually live. Loomis designs full outdoor environments, not just pools, and we coordinate all trades so the finished result feels intentional rather than assembled in pieces.

Attached and Spillover Spas

An attached spa (sometimes called a spillover spa) shares water circulation with your inground pool and can be heated independently, so you can use it year-round even in a Wisconsin winter. We design spas to flow naturally from the pool’s edge, using matching coping and tile so the transition reads as one unified feature. See how we’ve designed spillover spas for inground pools in the Mequon area for a sense of what’s possible.

Water Features

Deck jets, scuppers, grottos, and rock waterfalls are all features we can design into a New Berlin pool build. These elements are most impactful when they’re planned from the start, not added as an afterthought. A hillside lot in New Berlin’s western neighborhoods, for example, is a natural candidate for a tiered water feature that uses the grade change as a design asset rather than just an engineering problem to solve.

Pool Decking and Hardscaping

Concrete, natural stone, pavers, and composite decking all have different maintenance profiles and price points. We work with landscape and hardscaping contractors to coordinate decking, retaining walls, outdoor kitchens, fire features, and pergolas into a single integrated project scope. That means one point of contact and a design that actually hangs together.

New Berlin’s lot sizes make it one of the better markets in southeastern Wisconsin for true outdoor living builds. A 0.4-acre lot gives you room for a 16×32 pool, a generous deck, a spa, and a seating area without feeling cramped. We take full advantage of that.

What to Expect During Your New Berlin Pool Installation

Knowing what to expect on your property during construction makes the process a lot less stressful. Here’s a realistic timeline for a custom inground pool build in New Berlin:

Permit approval (2 to 6 weeks): The City of New Berlin requires a building permit for inground pool installations. We submit on your behalf, but plan for several weeks of lead time before any ground is broken.
Excavation (1 to 3 days): A tracked excavator will remove soil from the pool footprint. In New Berlin, that often means dealing with clay-heavy subsoil that needs to be hauled off-site rather than graded back in. Access to the yard via a side gate or fence panel removal is usually necessary.
Shell installation or steel/panel framing (1 to 5 days depending on type): Fiberglass pools are craned in as a single shell. Vinyl liner pools are built with steel or polymer panels set in the excavated hole. Gunite pools are sprayed and shaped on-site over a steel rebar framework.
Plumbing and electrical rough-in (3 to 7 days): Circulation lines, return fittings, drain systems, and all electrical runs are installed before backfill begins.
Decking and coping (1 to 2 weeks): Concrete forms, paver layouts, or stone work happen once the shell is in place and rough-in inspections are cleared.
Final inspection and water fill: The City of New Berlin’s building department conducts a final inspection before we fill the pool.

Total construction time from excavation to water fill typically runs six to ten weeks for a custom inground pool, depending on weather, material lead times, and scope. A project with a full hardscape package and attached spa will run closer to the longer end of that range.

SE Wisconsin summers are short. Starting your project early in the calendar year (January through March planning, April or May construction start) gives you the best odds of swimming by July 4th.

Permits, Zoning, and Site Considerations in New Berlin, WI

Every inground pool in New Berlin requires a building permit from the City’s Community Development and Building Inspections department. That permit review looks at several things: pool placement relative to property lines and easements, barrier and fencing requirements, electrical compliance, and (for larger builds) grading and drainage plans.

A few things worth knowing before you start planning:

Setback requirements: New Berlin zoning code requires inground pools to be set back a minimum distance from property lines and structures. The specific numbers vary by zoning district, so we verify your lot’s requirements during the site assessment.
Barrier and fencing rules: Wisconsin state law and New Berlin’s local ordinance both mandate enclosure of residential swimming pools. A 48-inch minimum fence height with a self-latching gate is a typical baseline; we build fence compliance into the project plan from the start.
Drainage considerations: New Berlin’s clay soil drains slowly. We engineer pool sites with that in mind, including drainage tile and grading plans that direct water away from the pool shell and the home’s foundation.
Utility locates: Before any excavation, we coordinate a Digger’s Hotline locate to identify buried utilities. Properties in New Berlin’s older neighborhoods occasionally have irrigation or gas lines that aren’t where you’d expect them.

For official permit information and forms, you can check the City of New Berlin Building Inspections department directly. We handle the submission process on your behalf, but it’s useful context when you’re planning your timeline.

How Much Does a Custom Pool Cost in New Berlin?

This is the question every homeowner asks first, and the honest answer is: it depends on pool type, size, features, and site conditions. Here’s a realistic range for New Berlin in the current market:

Vinyl liner inground pool (basic shape, no spa): $55,000 to $75,000 for a mid-size pool (around 16×32) with standard decking and equipment.
Vinyl liner with integrated spa and upgraded hardscape: $80,000 to $110,000 depending on spa size, decking material, and scope of the surround area.
Fiberglass pool with installation: $60,000 to $85,000 for a mid-range shell with standard surround work in Waukesha County.
Gunite / custom concrete pool: $90,000 and up, with full resort-style builds with water features, custom tile, and full outdoor living integration commonly reaching $150,000 to $200,000+.

Site conditions in New Berlin can affect cost. A lot with significant grade change may require retaining walls or additional excavation, which adds to the project budget. Clay soil removal costs more than sandy loam. These aren’t reasons to avoid the project; they’re variables to account for honestly in the estimate.

Loomis provides detailed itemized quotes after the site assessment so you know exactly what you’re paying for. No vague allowances or line items that balloon at the end. For more context on what drives cost in the SE Wisconsin market, see our Waukesha County pool builder resource covering project scopes and budget ranges across the region.

One more thing worth saying: a well-built inground pool adds meaningful value to a New Berlin home. In a Waukesha County real estate market where buyers pay a premium for outdoor amenities and large lots, a quality pool is a 15 to 20-year asset, not just a seasonal toy.

Frequently Asked Questions About Building a Pool in New Berlin

These are the questions we hear most often from New Berlin homeowners who are getting serious about starting a pool project.

Frequently Asked Questions

How long does it take to build a custom inground pool in New Berlin, WI?

From permit approval through water fill, most custom inground pool builds in New Berlin take 8 to 14 weeks. Permit review by the City of New Berlin typically takes 2 to 6 weeks before construction begins, and active construction (excavation through final decking) runs 6 to 10 weeks depending on pool type, scope, and weather. Projects with attached spas, full hardscape packages, or significant grade challenges will run toward the longer end of that range. Starting the planning process in late fall or winter gives you the best chance of swimming by mid-summer.

What pool types does Loomis Pools build: vinyl liner, fiberglass, or concrete?

We build all three. Vinyl liner pools are the most popular choice in southeastern Wisconsin and offer strong customization at a lower entry cost. Fiberglass pools install faster and have a smooth, durable shell, but you’re working within the manufacturer’s available shapes and sizes. Gunite (poured concrete) pools offer unlimited design freedom and are the right choice for complex shapes, vanishing edges, or large integrated spa features; they’re also the largest investment. During your site assessment, we’ll walk through which type fits your lot, your design goals, and your budget.

Do I need a permit to install an inground pool in New Berlin?

Yes. The City of New Berlin requires a building permit for all inground pool installations. The permit review covers placement setbacks, barrier and fencing compliance, electrical work, and drainage plans. Loomis handles the permit application on your behalf as part of the project scope. Plan for 2 to 6 weeks of permit review time before excavation can begin. For specifics on local requirements, the City of New Berlin Building Inspections department is the official source.

Can Loomis Pools design a pool for a small or sloped backyard in New Berlin?

Yes, and we do it regularly. New Berlin’s varied terrain means many lots have grade changes that require thoughtful design rather than a standard flat-site approach. A sloped yard can actually be a design asset: hillside lots are natural candidates for tiered water features, retaining walls that double as seating, or a pool positioned to take advantage of elevated sightlines. For tighter lots, compact pool shapes and smart hardscaping choices can maximize every square foot. Our small backyard pool ideas resource covers some of the design approaches we use for constrained sites.

Can I add a spa or hot tub to my inground pool during the build?

Absolutely, and doing it during the original build is the most cost-effective approach. An attached spa shares the pool’s circulation and heating equipment, which reduces equipment costs and simplifies installation compared to adding a standalone spa later. We design integrated spillover spas that connect to the pool with a shared waterfall or spillway, creating one cohesive water feature. If you’re interested in what an attached spa looks like in practice, our spillover spa project examples from the Mequon area give a good visual reference.

What is the best time of year to start a pool project in southeastern Wisconsin?

The best time to start planning is fall or winter, with a target construction start of April or May. Design consultations, permit applications, and material selections can all happen during the off-season, so you’re first in queue when the ground thaws and construction crews are available. Homeowners who wait until April to start the process frequently find themselves pushed to a late-summer or early-fall completion. In a Wisconsin market where the swim season runs roughly Memorial Day through Labor Day, a few weeks of delay matters. Contact us between October and February for the best shot at a July completion.

New Berlin is one of the best places in Waukesha County to build a custom inground pool. Large lots, established neighborhoods, and genuine outdoor living aspirations make it exactly the kind of market where a well-designed pool transforms a backyard into a place you actually want to spend your summer. Loomis Pools brings the local knowledge, the technical depth, and the full-service build capability to get it done right on your specific lot.

The Association of Pool & Spa Professionals sets the industry standards we build to, and every Loomis project reflects that commitment to quality construction and installation practices.

Ready to get started? Contact Loomis Pools today to schedule your free New Berlin site assessment and design consultation. We’ll come to your property, walk the yard with you, and give you an honest picture of what’s possible and what it costs. No pressure, no generic proposals, just a real conversation about your backyard. Reach out to our SE Wisconsin pool team here or call us directly to book your consultation.