Portage Ave window caulking — done right for our winters

Cracked, gapped or missing caulking around a window lets water and air in. We re-caulk the exterior and interior joints to seal out moisture and drafts.

Every opening measured on-site

Full air-seal on every unit

Written frame + sealed-glass warranty

Seal the gaps around the frame

Caulking is the weather seal between the window frame and the surrounding wall — the flexible bead that keeps water and cold air from getting in around the outside of the unit. It takes a beating from our climate, and when it cracks, shrinks or pulls away from the frame, wind-driven rain and cold air find the gap. Left alone, water getting behind the frame can rot the sill and the wall, so failed caulking is more than a cosmetic issue.

Fresh caulking protects both the opening and the frame, and it is a quick, low-cost job that pays for itself by keeping moisture out of the wall.

We remove the old, failed sealant and apply new, so the joint actually seals again.

From free estimate to installed — in four simple steps

Book the estimate

Call, text or use the form. We book a free in-home visit — no obligation, no high-pressure sales table.

On-site measure

We measure every opening, check the frames and sills for rot or water damage, and walk through material, style and glass options in plain language.

Written quote

Line-item quote with the window line, glass package, U-factor, warranty and haul-away on one page. Financing attached when you want it.

Install, cleanly

Drop cloths, boot covers and a full air-seal on every unit. Old windows hauled away and a walkthrough of your new windows plus warranty registration.

Watertight, draft-free joints

We remove the cracked or peeling caulking and apply fresh, flexible sealant rated for our temperature swings — a product that stays elastic in the deep cold so it does not crack again the first hard winter — inside and out where needed, tooled clean for a neat, watertight, draft-free joint.

Quick, affordable and protective, it is easy to do on its own or alongside any other window work while we are there.

Window Caulking questions answered

How often to re-caulk, drafts and water damage.

How often should window caulking be redone?

Exterior caulking typically lasts several years, but our freeze-thaw cycles and summer sun are hard on it, so it eventually shrinks, hardens and cracks away from the frame. Rather than a fixed schedule, the rule is to re-caulk when you can see gaps, cracks or sealant pulling away from the window, or when you feel a draft or find water near the frame. A quick look each spring and fall catches it early. Re-caulking when the seal first fails is far cheaper than repairing the water damage a neglected gap can cause.

Does caulking stop drafts?

Yes — a surprising amount of window draft comes not through the sash but through gaps in the frame-to-wall joint where the caulking has failed, and sealing that joint stops the air and water infiltration around the outside of the window. It works hand in hand with interior weatherstripping, which seals the moving sash: caulking seals the fixed perimeter, weatherstripping seals the part that opens. Together they close the two main paths cold air takes around a window. We can check and address both at the visit.

Can bad caulking cause damage?

Yes — this is why caulking matters beyond comfort. When the frame-to-wall seal fails, water can get behind the window frame and into the wall, where over time it rots the sill, the framing and the interior finishes, and can feed mould. That hidden damage is far more expensive to fix than the caulking that would have prevented it. Keeping the exterior joint sealed is cheap insurance for the opening and the wall around it. If water has already been getting in, we will check for damage and let you know what we find.

Interior or exterior caulking — which do I need?

Exterior caulking seals the frame to the wall against water and wind; interior beads finish and air-seal inside. We advise and do whichever your window needs.

What kind of sealant do you use?

A flexible, exterior-grade sealant rated to stay elastic in the deep cold, so it does not crack and pull away the first hard winter.

Book a free Portage Ave window caulking estimate

Cracked or failing caulking around your windows? Book a visit anywhere across Portage Ave and the surrounding towns — we strip the old sealant and apply fresh, cold-rated caulking for a watertight, draft-free joint that protects the frame and wall. Done by our own crews, quoted up front, no subcontractors, no pressure.

Locally owned · Insured · ENERGY STAR® · Free written estimates

Real Portage Ave reviews

What Portage Ave homeowners say about us

★★★★★ 4.9 · 118 reviews on Google

★★★★★

Old caulking had cracked and water was getting in. They stripped it, re-sealed with cold-rated caulk and the joint is watertight.

C. Deschamps

Homeowner, Portage Ave

Neat, tidy re-caulk inside and out. Draft around the frame is gone and no more worry about rot.

A. Virk

Caught a small leak before it damaged the sill. Fast, affordable and properly tooled.

R. Fournier

★★★★

Fresh flexible sealant that should hold through our winters. Clean lines, honest price.

M. Okeke

Portage Ave window caulking — done right for our winters

Seal the gaps around the frame

From free estimate to installed — in four simple steps

Book the estimate

On-site measure

Written quote

Install, cleanly

Watertight, draft-free joints

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Window Caulking questions answered

What Portage Ave homeowners say about us

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Book a free Portage Ave window caulking estimate