Essex · England
Window & door mastic in Stratford St Mary, Essex
Our applicators work in Stratford St Mary on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Old mastic that has gone black or come away
- Whistling draughts around closed windows
- Sealant in the wrong colour for the frame
Window mastic in Stratford St Mary
From a single sill to a whole house of windows, you will get a clear quote before any work starts. To get one, phone 0345 464 0079 or send us an email with the number of frames and any access details. If you’re dealing with hard, cracked sealant around windows and white mastic on grey or black frames, we can put it right, whatever the surface.
Outdoor sealant needs dry, clean surfaces, so work on frames around Stratford St Mary 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 Stratford St Mary and across Essex.
- Where
- Stratford St Mary (CO7)
- Region
- Essex
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Stratford St Mary
Getting a straight, even bead on an outside frame takes practice, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. Older cottages and farmhouses around Stratford St Mary can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we will go through it with you.
Why Stratford St Mary clients choose us
- Experience in homes, commercial sites and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- Full insurance on every job
- Trusted Arbo and Everbuild sealants
Take a look at what affects the cost or customer reviews.
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Damp coming through the wall itself rather than the frame joint
- A frame that has rotted at the joint
- A door that needs adjusting, rehanging or new seals
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Timber windows & doors
- Window sills
- uPVC windows
- Aluminium frames
- Patio & French doors
- Composite doors
How to look after the new joints
After the cure time, these simple habits help:
- Use gentle cleaners on frames and sealant
- Wipe condensation off the frames
- Look round the frames every year or so
- Paint up to the joint, not over it
Check the drainage slots in the frames aren’t blocked, so water can run away instead of sitting against the joint.
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.
Also near Stratford St Mary
More services for Stratford St Mary
DIY sealant or a professional job?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
What we do, step by step
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes most of a day for a typical house, less for a few frames. In a small place like Stratford St Mary, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Where the joints are inside, avoid wetting them before we arrive
- For business premises, tell us about site rules or sign-in
Get a quote
Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or drop us an email with the details.
Read more
Stratford St Mary homes and the weather
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 1.7 miles south-east) nearby, there’s older building stock in the area around Stratford St Mary as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Managing a site like Stratford St Mary Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. For an older house near a landmark such as Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Stratford St Mary is about 6 miles north-east of Colchester, in Essex. Anywhere in CO7, we can carry out window mastic at your property. Our Essex coverage runs to 644 places, and Stratford St Mary is one of them. You can also see our page for Chelmsford, about 26 miles away.
We work across the CO7 postcode area for window mastic. If you need window mastic at a property on The Street, Kenyon Close and Strickmere or anywhere close by, we can help. Close by, we work in Higham (1 mile north-west), Dedham (1 mile south-east), Lamb Corner (2 miles south), Holton St Mary (2 miles north-east) and Hornestreet (2 miles south-west). Larger places within reach include Colchester (6 miles south-west), Clacton-on-Sea (14 miles south-east), Harwich (13 miles east), Camulodunum (7 miles south-west), Halstead (15 miles west) and Greenstead (6 miles south).
Around Stratford St Mary
We work in homes and buildings around East Bergholt High School and The Anchor pub and the streets around them. The closest station to Stratford St Mary is Manningtree station, about 3.3 miles south-east. Nearby you’ll also find Severalls Hospital (5 miles south-west) and The Munnings Museum (1.7 miles south-east). Not far away are Cattawade Marshes.
Signs you need window mastic in Stratford St Mary
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. Failed sealant there lets rain into the wall or behind the frame.
Keep an eye out for these signs:
- Untidy mastic left by window fitters
- Draughts coming in around windows and doors
- Old mastic that has gone black or come away
- Cracked sealant at the sill ends
Rented homes near Manningtree 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.
Before booking anyone
- What happens if they find a problem under the old sealant
- Whether the sealant suits the joint
- Is VAT in the price?
- When the joint can take water or movement
Landlord and commercial work in Stratford St Mary
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
Your questions about window mastic in Stratford St Mary
I let a flat near Manningtree station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Will you come out to Stratford St Mary?
Yes. Stratford St Mary is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you guarantee window mastic?
Yes. Each job is covered for 12 months, inside or out.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
What does window mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or send us an email.
Where are you based?
We are a Crawley-based firm. Our area covers South East England, London and Scotland.
Can you do the inside joint as well?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.