Condensation & Draughty Window Repairs
Streaming windows, cold draughts and sticking sashes are usually a seal, hinge or glass problem — not a reason to replace everything.
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Condensation on the inside of the glass is usually a ventilation issue. Condensation between the panes is a failed unit. Draughts are usually seals or hinges. We'll tell you which one you've got.
Why Choose Our Condensation & Draughty Windows
Diagnosed Properly
We find the cause before quoting anything.
Seal Replacement
New gaskets and brush seals to stop draughts.
Hinge & Lock Repairs
Adjust or replace failed hardware.
Handle Replacement
Broken or stiff handles swapped out.
Trickle Vents
Fitted to help control internal condensation.
Honest Verdict
If it can't be fixed, we'll say so plainly.
Our Condensation & Draughty Windows Range
Draught Proofing
New seals around sashes and frames.
Window Lock Repair
Failed espagnolette and shootbolt mechanisms.
Hinge Replacement
Dropped or seized friction stays.
Internal Condensation Advice
Ventilation fixes that actually work.
What's included in every condensation & draughty windows job
- Free, no-pressure home survey — measured by the person doing the fitting
- Clear written quote, usually back with you within 48 hours
- Removal and responsible disposal of your old units
- Fitted by DM Installations ourselves — never subcontracted
- Frames packed, sealed and finished properly inside and out
- Everything hoovered up and cleared away before we leave
- One phone call if anything ever needs adjusting afterwards
Questions worth asking any installer
Who actually does the fitting?
We do. You deal with Martyn from the first phone call to the final clean-up — no subcontractors, no call centre.
Is the price fixed?
Yes. The price we quote after the survey is the price you pay. No day-of-fitting extras.
How much mess is there?
We use dust sheets, work room by room and clear up as we go. We wouldn't leave someone's home any different from our own.
Do I always need a full new window?
No. If it's just a misted or failed unit, we replace the pane and leave the frame — a fraction of the cost.
How far do you travel?
We're based in Cumbernauld and cover Glasgow, Falkirk, Stirling, Lanarkshire and the wider Central Scotland area.
Related Services
Other work we carry out for homeowners across Central Scotland.
Misted Double Glazing
Condensation between the panes means the seal has failed. We replace just the glass unit and leave your frames in place — a fast, affordable fix across Central Scotland.
Glass Replacement
Broken, cracked or misted glass replaced in windows and doors — measured, ordered and fitted without replacing the whole frame.
Replacement Windows
Energy-efficient uPVC and aluminium replacement windows, made to measure and fitted properly across Cumbernauld, Glasgow, Falkirk, Stirling and the wider Central Scotland area.
Double Glazing
New A-rated double glazing and sealed unit replacement for homes across Cumbernauld, Glasgow, Falkirk, Stirling and beyond.
Frequently Asked Questions
Yes — every quote is free and there's no obligation. We come out, measure up and give you a clear written price.
Need New Windows or Doors?
Speak to DM Installations for a free, no-obligation quote on windows, doors, patio sliders, bi-folds and glass replacement across Central Scotland.
Replace the pane, not the frame — ask us before you replace a whole window.