Essex · England
Lexden Sand Mastic
Sand mastic in Lexden from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- A silicone bead on a sash window that spoils the look
- Gaps between timber frames and stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
Sand mastic for homes and businesses in Lexden
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. We work on tenement windows, timber door frames and stone surrounds, and the jobs we see most are gaps round a timber door in stone or brick and old cement repairs round a window that have failed.
Many houses in smaller places like Lexden have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows, and any older timber or sash windows need a sealant that suits them.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- Lexden (CO3, CO2)
- Wider area
- Essex
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Leave it or put it right?
New sash windows are a major, costly change and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. In an older home around Lexden, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Why choose Mr Mastic in Lexden
- Anti-fungal silicone where joints get wet
- Trusted Arbo and Everbuild sealants
- One-year guarantee on every job
- We are fully insured
Take a look at what affects the cost and what customers say.
Common questions in Lexden
Do you work for landlords with property near Colchester station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Is Lexden in your area for sand mastic?
Yes. We work across London and the South East, and Lexden is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job.
How long does sand mastic take to harden?
The surface skins quite quickly and it hardens fully over a longer time. The weather and joint depth both affect it.
Do I need to be at home?
We need access to the joints, so we will agree that with you when we book. Indoors, that usually means someone at home.
How long will you be here?
A typical job takes a few hours per window, depending on the condition of the joints. Your quote will say how long we expect yours to take.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few photos.
Should I use sand mastic or silicone?
We will help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.
Are you fully insured?
Yes. We are fully insured.
Sand mastic in Lexden: local notes
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.
Managing a site like Philip Morant School and College? Then the mastic around its windows and doors needs looking after like any other building’s. In the older streets around Church of St Leonard, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Lexden is about 1 mile west of Colchester, in Essex. Every kind of property in Lexden can book us for sand mastic. Every job comes with our 12-month guarantee. Across Essex, we cover 644 places, and Lexden is one of them. Chelmsford is on our list too, about 19 miles from Lexden.
Here we cover the CO3 and CO2 postcode area for sand mastic. We cover properties on Park Road, Heath Road and Capel Road. Lexden is on the A1124, which makes it straightforward to reach. Neighbouring places we cover for sand mastic include Camulodunum (1 mile east), Braiswick (1 mile north), Abbey Field (1 mile south-east), Colchester (1 mile east) and Beacon End (2 miles west). Further out, we also cover Braintree (13 miles west), Clacton-on-Sea (13 miles south-east), Maldon (13 miles south-west), Witham (11 miles south-west), Halstead (11 miles west) and Heybridge (12 miles south-west).
Around Lexden
We work in homes and buildings around Lexden Park, Prettygate Infant School and The Sun Inn and the streets around them. For rail, the closest station is Colchester station, about 1.6 miles north-east of the centre. A little further out are Essex County Hospital (1 mile east) and Lion Walk (1.5 miles east). Green spaces nearby include Lexden Gathering Grounds.
Signs you need sand mastic in Lexden
Over the years, sand mastic weathers. It hardens, cracks and starts to come away from the frame or the masonry.
These are the problems we’re asked about most:
- Mastic that needs renewing before redecorating
- Crumbling sand mastic round a window
- Gaps where the frame meets the masonry
- Failed mastic on an exposed elevation
Letting a property close to Colchester station? Then any sash windows need sound mastic to keep draughts and rain out.
Comparing quotes
- Whether VAT is included
- Whether they seal over old material or remove it
- How much experience the applicator has
- How long the guarantee is
What sealant work can’t fix
A few problems are outside what sealant work can do:
- Crumbling stone or brickwork round the window
- Cracked or broken glass
- Timber that has rotted
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer before booking.
What we seal
- Period & listed homes
- Timber door frames
- Tenement windows
- Stone surrounds
- Brick reveals
- Sash and case windows
What we do, step by step
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a single window, longer for several. A visit to Lexden is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about earlier repairs to the joints
- For business premises, tell us about site rules or sign-in
Get a quote
We do not publish a price list. Instead, we give you a clear price for your job. To get started, ring 0345 464 0079 or drop us an email.
Related advice
What affects the cost of sand mastic
We don’t publish a price list, because jobs vary so much. What we look at:
- The amount of work
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, phone 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What we need to know
What to tell us when you ask for a quote:
- The rough size of the job
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
- Photos by email, if that is easy
To get a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, 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.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Also near Lexden
Other services in Lexden
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Clear gutters so water does not pour onto the windows
- Have rotten timber repaired before new mastic goes in
- Keep modern sealant off the mastic
- Take care around the mastic when scraping paint
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens.