Milton Keynes · England
Window & door mastic in North Crawley, Milton Keynes
Window mastic for North Crawley and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Gaps between the frame and the inside reveal
- Cracked sealant at the sill ends
- Sealant in the wrong colour for the frame
Window mastic in North Crawley, done properly
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. Just call 0345 464 0079 or drop us an email and tell us how many frames there are and how they’re reached. If you have white mastic on grey or black frames and draughts coming in around windows and doors, we can put it right.
Somewhere as small as North Crawley, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Place
- North Crawley (MK16)
- Region
- Milton Keynes
- Guarantee
- One year on every job
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
When to call us in North Crawley
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.
These are the problems we are asked about most:
- Draughty joints inside around the window
- Gaps left after new windows were fitted
- Mastic that has split away from the wall
- Cold air getting in at the frame edge
For an older house near a landmark such as Church of St Firmin, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What your quote should include
- How the joint is cleaned and prepared
- How long to leave it before use
- Whether they seal over old material or remove it
- What happens if the job turns out different
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Landlord and commercial work in North Crawley
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Common questions in North Crawley
Is North Crawley in your area for window mastic?
Yes. Our work covers London and the South East, and North Crawley is part of that. You can call 0345 464 0079 or email us and tell us what needs doing.
What guarantee comes with window mastic in North Crawley?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Do you take out the old sealant first?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. We’ll tell you how long your job needs when we quote.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Will new mastic stop draughts?
Yes, where the draught is at the frame edge. We check where the draught is before work begins.
What affects the quote in North Crawley
We quote each job individually. These are the things that affect it:
- The size of the job
- Access and height
- Any mould that needs treating
- Any working-time requirements on site
Combining jobs into one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We will give you a clear quote for the lot.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Pictures of the joints, sent by email
- The rough size of the job
- How we’d reach the joints
- What’s wrong with the joints now
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Rotten timber, which needs a joiner first
- A door that needs adjusting, rehanging or new seals
- Faulty window hardware
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
Where we work in North Crawley
- uPVC windows
- Composite doors
- Window sills
- Patio & French doors
- Timber windows & doors
- Aluminium frames
Window mastic in North Crawley: local notes
With historic houses such as Linford Manor (about 4.8 miles west) nearby, there’s older building stock in the area around North Crawley as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Schools such as North Crawley CofE School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
North Crawley is about 3 miles east of Newport Pagnell, in Milton Keynes. Wherever you are in the MK16 postcode area, we can carry out window mastic at your property. 73 places in Milton Keynes are on our list. Oxford is on our list too, about 34 miles from North Crawley.
We cover every part of MK16 for window mastic. You will find streets such as High Street, Bryans Crescent and Hackett Place, all of which we cover. Neighbouring places we cover for window mastic include Moulsoe (2 miles south-west), Salford (3 miles south), Broughton (4 miles south-west) and Kingston (4 miles south). Larger places within reach include Milton Keynes (6 miles south-west), Bletchley (8 miles south-west), Newport Pagnell (3 miles west), Bletchley and Fenny Stratford (8 miles south-west), Furzton (8 miles south-west) and Whitehouse (8 miles south-west).
What’s near North Crawley
Locally, jobs take us to homes and businesses close to The Cock pub, among other places. Other landmarks nearby include Milton Keynes University Hospital (5.9 miles south-west) and Newport Pagnell Historical Society Museum (3.1 miles west). Green spaces nearby include Tongwell Lake.
What we do, step by step
Before we leave, we go over the finished joints with you. The visit itself generally takes a morning for a couple of windows and a door, depending on how much there is to do. Somewhere as small as North Crawley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
Before we arrive
- Let us know about earlier repairs to the joints
- Move anything stored near the joints
- Mention any tricky access
Getting a quote
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
Read more
Also near North Crawley
More services for North Crawley
Surface by surface
Window sills
Stone and concrete sills have their own joints, including the one between the sill and the frame above. Those are sealed with a product suited to stone or concrete.
Patio & French doors
Heavy door frames can move more than windows. The sealant must cope with it without cracking.