Milton Keynes · England
Sand Mastic in North Crawley
We cover North Crawley for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Gaps where the frame meets the masonry
- Crumbling sand mastic round a window
- Silicone on a period window that looks wrong
Sand mastic in North Crawley, done properly
We work across North Crawley renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. We work on stone surrounds, period & listed homes and sash and case windows, and the jobs we see most are mastic dropping out of the joint and gaps round a timber door in stone or brick.
Homes in small places like North Crawley often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- North Crawley (MK16)
- Region
- Milton Keynes
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
For landlords and businesses
We work for letting agents and landlords as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Nearby places to North Crawley
What else we do in North Crawley
What sand mastic looks like in North Crawley
Historic houses like Linford Manor (about 4.8 miles west) are a reminder that the area around North Crawley has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. The South East is one of the drier parts 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. Homes close to Church of St Firmin include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
North Crawley is about 3 miles east of Newport Pagnell, in Milton Keynes. North Crawley gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. 73 places in Milton Keynes are on our list. We also work in Oxford, about 34 miles from North Crawley.
All of MK16 is covered for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on High Street, Bryans Crescent and Hackett Place or a nearby road, we can help. Neighbouring places we cover for sand mastic include Moulsoe (2 miles south-west), Salford (3 miles south), Broughton (4 miles south-west) and Kingston (4 miles south). We also work in nearby towns such as 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
Around North Crawley, our work takes us to homes and buildings near The Cock pub. Other landmarks nearby include Milton Keynes University Hospital (5.9 miles south-west) and Newport Pagnell Historical Society Museum (3.1 miles west). Open spaces near North Crawley include Tongwell Lake.
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Ask us before painting near the mastic
- Ask the planning authority about consent for listed or conservation-area homes
- Check the mastic when you check the paintwork
- Make sure water runs off the sill
Avoid painting over the new mastic, which is the traditional advice. If you’re redecorating, ask us first.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
Why it’s worth doing now in North Crawley
New sash windows are a major, costly change, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Older cottages and farmhouses around North Crawley can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before we start.
Why book with us
- Tidy, careful work
- Rated 4.9 stars on Google
- Approved under the ARBOMaster scheme
- We never seal over old sealant
Read how sealant jobs are priced and customer reviews.
What we do, step by step
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours for a single window, longer for several in most cases. For a village or hamlet like North Crawley, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
- Clear items away from the joints we’re working on
Get a quote
For sand mastic in North Crawley, ring 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Advice
Questions from North Crawley
What guarantee comes with sand mastic in North Crawley?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Is North Crawley in your area for sand mastic?
Yes. We work across London and the South East, and North Crawley is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We will tell you what we are using and why.
Can I choose the sealant colour?
Yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before any work starts.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that usually means someone at home.
What is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It combines sand with a linseed-oil-based binder.
What should I tell you?
Just the basics: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or send us an email.
How long does the job take?
Most jobs take a few hours for a single window, longer for several. We’ll confirm how long when we quote.
What affects the cost of sand mastic
For a quick quote, just ask. The main things that affect it are:
- Whether the work is at height
- The type of sealant required
- How much old sealant there is and how hard it is to remove
- The number of rooms or windows
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
What we need to know
Photos by email are helpful but not essential. Please mention:
- The address or postcode of the job
- Any access issues, like height or stairs
- If someone has resealed it before
- A few photos by email, if you can
Want a quote for sand mastic? Please phone 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
What the job involves on each surface
Sash and case windows
The mastic round a sash window is on show, so a neat, even finish matters.
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.