WELLESLEY, MA • FAMILY OWNED SINCE 1972

Basement Waterproofing &
Foundation Repair
In Wellesley

Rolling hills, brooks and ponds on every side, century-old colonials on stone foundations — and some of the most valuable finished basements in Massachusetts. Keller has been keeping New England basements dry for over 55 years, and we know exactly what your Wellesley home is up against.

508-672-5444

Somerville

508-353-2777

Worcester

The Keller Difference

PROUDLY SERVING WELLESLEY NEIGHBORHOODS

Wellesley Hills

Wellesley Square

Wellesley Farms

The Fells

Cliff Estates

Poets’ Corner

College Heights

Babson Park

Dana Hall Area

Why Wellesley Homes
Have Wet Basements

THE WATER

Brooks & Ponds

Fuller Brook, Rosemary Brook, Waban Brook, Morses Pond, Lake Waban — Wellesley is laced with waterways. Homes near them sit on seasonally high groundwater, which means damp basements every spring even without a drop of rain overhead.

THE TERRAIN

Rolling Hills

They’re called Wellesley Hills for a reason. On rolling lots, every storm sends runoff from uphill properties, driveways, and hardscape toward the homes below — and your foundation is what stops it.

THE BUILDING BOOM

Changing Lots

Teardowns, additions, and new hardscape are reshaping how water moves across Wellesley. A bigger footprint and a regraded lot next door can send water somewhere it never used to go — like your basement.

Keller’s interior, exterior, and multi-step waterproofing systems are engineered for exactly these conditions — backed by our lifetime transferable warranty.

What We Fix
In Wellesley

BEFORE YOU FINISH IT

Basement Waterproofing

Finishing a basement without waterproofing it first is a gamble with hardwood, media rooms, and gyms on the table. We make the space dry — permanently — before the contractors arrive.

FIELDSTONE TO POURED

Foundation Repair

Permanent structural repairs for every era of Wellesley home — from pre-war stone foundations to modern poured concrete.

ESTATE LOT DEFENSE

Yard Drainage & Grading

On rolling, landscaped lots, drainage is the first line of defense — protecting your foundation, your lawn, and your landscaping investment at once.

STONE WALLS & CHIMNEYS

Masonry Repair

Wellesley’s stone retaining walls, brick steps, and chimneys take a beating from freeze-thaw. We restore strength and appearance.

Plus: basement windows, bulkheads & egress — including code-compliant egress windows for finished basement projects, plus replacement of old steel windows and rotted bulkhead doors, two of the most common water entry points in Wellesley homes.

FINISHED BASEMENTS RAISE THE STAKES

Protect The Investment
Below Your Floors

In Wellesley, a basement is rarely just storage. It’s a home gym, a media room, a playroom, an office — often six figures of finished space sitting below grade. When water finds its way in, it doesn’t just leave a puddle; it ruins flooring, drywall, and everything you built down there.

That’s why the right order matters: waterproof first, finish second. And for Wellesley’s older homes — the century-old colonials of Wellesley Hills and Wellesley Farms on fieldstone foundations — the method matters too. Stone walls can’t be injected like poured concrete; they need exterior elastomeric membrane sealing, interior drainage systems with liners, and careful repointing. Keller has worked on New England stone foundations for over five decades. Repairs are permanent, not patches, and our lifetime transferable warranty adds real, documented value when it’s time to sell — something buyers in this market notice.

Why Wellesley Homeowners Choose Keller

Things Wellesley Homeowners Ask Us

We're planning to finish our basement. What should we do first?

Waterproof it — before a single stud goes up. Once walls are framed and finished, water problems hide until they’ve already done expensive damage, and fixing them means tearing out finished work. An interior drainage system, properly sized sump pump, and sealed walls cost a fraction of redoing a finished basement. We’ll inspect the space free of charge and tell you honestly whether it’s ready to finish.

We live near Fuller Brook and the basement is damp all spring. Why?

Homes near Wellesley’s brooks and ponds sit on seasonally high groundwater. In spring, the water table rises toward your basement floor and creates hydrostatic pressure from below — no rainstorm required. An interior drainage system with a sump pump manages that pressure year after year, and a battery backup keeps it running through storm outages.

Ever since the new construction next door, our yard and basement are wetter. Is that possible?

Absolutely. A larger footprint, added hardscape, and a regraded lot all change where stormwater goes — and it has to go somewhere. If that somewhere is now your property, the fix is intercepting it: French drains, regrading, and downspout management that redirect the water before it reaches your foundation. We evaluate the whole lot during your free estimate.

Our Wellesley Hills home has a fieldstone foundation. Can it actually be waterproofed?

Yes — but not with injection methods made for poured concrete. Stone foundations are made of many pieces held together with porous mortar, so they’re best sealed from the exterior with a flexible elastomeric membrane, or protected from the interior with a drainage system and liner that captures seepage and directs it to a sump. Keller has been waterproofing New England stone foundations for over five decades.

How much does basement waterproofing cost in Wellesley?

It depends on the source of the water, your foundation type, and the right system for your home — which is why we start with a free on-site inspection and a written, no-obligation quote. No pressure, no gimmicks — just an honest assessment from a local family business.

Should I fix all my cracks at once or just the leaking ones?

Fix them all at once. Here’s why:

All cracks eventually leak. Fixing only the leaking ones just delays the inevitable, and costs more because you have to pay more than once to bring the repairman out again.

Water seeks the path of least resistance. If there are multiple cracks some will provide less resistance to the water than others so they leak first. Once the cracks are sealed, the water will look for the next easiest path which is typically the cracks that weren’t previously leaking.

Save money: When you are having cracks repaired, take advantage of quantity discounts usually available and have them all fixed at once.

READY FOR A DRY BASEMENT IN WELLESLEY?

Call ‪(508) 353-2777