Essex · England
Moulsham Window Mastic
Window and door frames in Moulsham need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Cracked internal joints between frame and plaster
- Water coming in at the bottom corners of a door
- Leaking joints at the ends of sills
Your questions about window mastic in Moulsham
Do you work for landlords with property near Chelmsford station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Do you cover Moulsham for window mastic?
Yes. Our work covers London and the South East, and Moulsham is part of that. You can call 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear quote.
Where do you work from?
We are a Crawley-based firm. Our area covers South East England, London and Scotland.
Are you insured?
Yes. Full insurance covers our work.
Do you have sealant for grey or black windows?
Normally, yes. Tell us the frame colour when you get in touch and we will match it as closely as we can.
Will new mastic stop draughts?
It will if the frame joint is the problem. We find where the air is coming from before we reseal.
Do you work on first-floor windows?
Yes, in most cases. Access is planned before any work starts, so mention the height and anything in the way.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
How we handle window mastic in Moulsham
Whether it’s one leaking patio door or every frame on the house, you will get a clear quote before we start. To get one, ring 0345 464 0079 or drop us an email with the number of frames and any access details for window mastic in Moulsham. If you have white mastic on grey or black frames and cracked internal joints between frame and plaster, we can help, on window sills, patio & French doors and timber windows & doors alike.
Houses in smaller places like Moulsham can stand more in the open than those in a built-up town. The mastic around frames on those walls tends to age faster.
You’re covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Place
- Moulsham (CM2, CM1)
- Wider area
- Essex
- Cover
- A year, on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Landlords, agents and businesses in Moulsham
We also work for property managers and facilities teams in Moulsham and across Essex. We can quote a run of properties together.
We work for landlords and agents as well as householders. Resealing between tenancies keeps a property looking cared for.
Windows and doors in Moulsham
Historic houses like Hylands (about 1.7 miles south-west) are a reminder that the area around Moulsham has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
For site and facilities teams at buildings such as Our Lady Immaculate Catholic Primary School, larger buildings have plenty of frames, and the mastic around each one ages. Rented homes near Chelmsford 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.
Moulsham is about 1 mile south-west of Chelmsford, in Essex. Every kind of property in Moulsham is covered for window mastic. The work is guaranteed for a year. Across Essex, we cover 644 places, and Moulsham is one of them.
All of CM2 and CM1 is covered for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on Elm Road, York Road and Lady Lane or anywhere close by, we can help. With the A1060 and A1099 close by, Moulsham is simple for us to get to for window mastic. Neighbouring places we cover for window mastic include Chelmsford (1 mile north-east), Widford (1 mile south-west), Patching (2 miles north), Writtle (2 miles west) and Chignall St James (3 miles north-west). Within a short drive, we also cover Basildon (11 miles south), Braintree (11 miles north), Harlow (15 miles west), Brentwood (10 miles south-west), Maldon (9 miles east) and Canvey Island (15 miles south).
Landmarks near Moulsham
Around Moulsham, our work takes us to homes and buildings near Moulsham High School, Chelmsford College and Oaklands Park, among other places. Nearby too are Our Lady Immaculate Church (less than half a mile north) and The Anchor Public House (under half a mile north-east). The nearest railway station is Chelmsford station, about 0.6 miles north of the centre. Well-known places in the area include Bond Street Chelmsford (0.6 miles north-east) and Peter Edwards Museum And Library (under half a mile north). Green spaces nearby include Newland Grove.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Towns and villages near Moulsham
What else we do in Moulsham
Do you need window mastic in Moulsham?
Mastic ages in the weather. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
Signs it’s time to call us include:
- Gaps left after new windows were fitted
- Mastic that is falling out in pieces
- Hard, cracked sealant around windows
- Leaking joints at the ends of sills
For an older house near a landmark such as Church of St John the Evangelist, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What to look for in a quote
- When the joint can take water or movement
- Is the old sealant removed completely?
- What happens if the job turns out different
- What guarantee comes with the work
Why act early in Moulsham
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. Homes in smaller places like Moulsham can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why choose Mr Mastic in Moulsham
- Tidy, careful work
- Domestic, commercial and hotel work
- We agree the colour with you first
- 180+ five-star Google reviews
Surface by surface
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. Each is cleaned out and resealed.
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.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Check the mastic once a year
- Avoid blasting the frames with a pressure washer
- Keep drainage slots and sill grooves clear
- Use gentle cleaners on frames and sealant
Keep the new mastic undisturbed while it cures, for as long as we advise. Keep jet washers away from the frames.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
What we do, step by step
Most of a good job is in the 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 a few hours for a handful of frames, longer for a whole house. A visit to Moulsham is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or send us an email.
