Essex · England
Window & door mastic in Boxted, Essex
Mastic around window and door frames, sills and patio doors in Boxted, with a one-year guarantee on every job. Call for a quick quote.
- Draughty joints inside around the window
- Cracked or shrunken mastic around the frame
- Sealant in the wrong colour for the frame
Surface by surface
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Composite doors
Composite doors are normally hung in an uPVC-type frame, so its perimeter joint is sealed much like a window. The bead is colour-matched to the frame.
Window mastic for homes and businesses in Boxted
Homes in Boxted have every kind of window: uPVC, aluminium, timber and composite, plus patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. We work on uPVC windows, patio & French doors and window sills, and common reasons people get in touch are cracked or shrunken mastic around the frame and a bead that doesn’t match the frame.
Outdoor sealant needs dry, clean surfaces, so work on frames around Boxted is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Big or small, you get the same one-year guarantee in Boxted and across Essex.
- Location
- Boxted (CO4)
- Region
- Essex
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Honest limits
We’ll always be straight with you, so here’s what sealant can’t fix:
- A door that needs adjusting, rehanging or new seals
- Damp problems in the wall away from the window
- A frame that has rotted at the joint
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.
Where we work in Boxted
- Patio & French doors
- uPVC windows
- Composite doors
- Timber windows & doors
- Aluminium frames
- Window sills
The process
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. Somewhere like Boxted needs a little journey planning: 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.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- Mention any tricky access
- On commercial sites, let us know about site rules
- Tell us about any water getting in
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
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Also near Boxted
What else we do in Boxted
Questions from Boxted
Can you do window mastic in Boxted?
Yes. Our work covers London and the South East, and Boxted is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Is Boxted within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you quote for more than one area?
Of course. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
Will resealing my frames help with draughts?
Yes, where the draught is at the frame edge. We check where the draught is before work begins.
Can you seal the gap between the frame and the plaster indoors?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.
Can you match the sealant to my frames?
Yes. Grey and black frames get grey or black sealant, and wood-effect frames generally suit brown.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint.
For landlords and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Housing providers, facilities teams and property managers book us too in Boxted and across Essex. We can quote a run of properties together, and we’re fully insured.
What window mastic looks like in Boxted
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Castle House (about 3.7 miles east) nearby, there’s older building stock in the area around Boxted as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around Church of St Peter, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For site and facilities teams at buildings such as Boxted St Peter's Church of England School, the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Colchester station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Boxted is about 4 miles north of Colchester, in Essex. Wherever you are in the CO4 postcode area, we can carry out window mastic at your property. Boxted is one of 644 places in Essex where we work for window mastic. You can also see our page for Chelmsford, roughly 23 miles from Boxted.
We cover every part of CO4 for window mastic and the streets around it. We cover properties on Church Road, Boxted Straight Road and Windmill Close and the roads around them. Neighbouring places we cover for window mastic include Workhouse Hill (1 mile west), Boxted Cross (1 mile north-east), Langham (1 mile east), Hornestreet (1 mile east) and Thorington Street (2 miles north). Larger places within reach include Colchester (4 miles south), Clacton-on-Sea (15 miles south-east), Harwich (15 miles east), Camulodunum (5 miles south), Halstead (12 miles west) and Greenstead (4 miles south).
Local landmarks in Boxted
For rail, the closest station is Colchester station, about 3.6 miles south. Well-known places in the area include Severalls Hospital (2.4 miles south) and Colchester Castle (4.2 miles south). Open spaces near Boxted include Westhouse Wood.
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Aftercare tips
Aftercare is simple:
- Keep paint off silicone joints
- Keep timber frames painted
- Clear any debris from frame drain holes
- Wash the frames with mild soapy water
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
What affects the quote in Boxted
We quote each job individually. These are the things that affect it:
- How easy the joints are to reach
- Any mould that needs treating
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Helping us quote
What to tell us when you ask for a quote:
- Pictures of the joints, sent by email
- If someone has resealed it before
- Whether it’s a home or a business
- Roughly how big the job is
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.