Greater London · England
Sand Mastic in Dagenham
Problem with your window and door surrounds in Dagenham? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Silicone on a period window that looks wrong
- Failed mastic on an exposed elevation
- Draughty sash windows at the surround
Common problems we fix in Dagenham
Water gets into small cracks in the mastic and pushes it out. Exposed elevations usually fail first.
Any of these means the joints need attention:
- Mastic that needs renewing before redecorating
- Failed mastic on an exposed elevation
- Silicone on a period window that looks wrong
- Cracked mastic round a front door frame
Rented homes near Dagenham Dock station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Before you book anyone
- What insurance they hold
- Whether VAT is included
- How much experience the applicator has
- How the surfaces are prepared before sealing
About our sand mastic in Dagenham
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditional guidance is not to paint over it, so ask us before you decorate. If you have mastic worn away on windows facing the weather and cement or filler used on old window joints that has cracked, we can help, whatever the surface.
Much of London’s older housing was built with timber sash windows, some still in place and some long since replaced. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Where
- Dagenham (RM10, RM9, RM13, RM7)
- Region
- Greater London
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Frames and glazing around Dagenham
Historic houses like Rainham Hall (about 2 miles south-east) are a reminder that the area around Dagenham 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. In London conversions and blocks, the lease decides who is responsible for the frames, so check that before you book.
In the older streets around St. Peter and St. Paul, the joint between an old wall and a newer frame is normally the first place rain gets in. Schools such as Village Infants' School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Dagenham is about 3 miles south of Romford, in Greater London. From the centre of Dagenham to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Across Greater London, we cover 764 places, and Dagenham is one of them. We also work in London, about 11 miles from Dagenham.
Jobs for sand mastic in RM10, RM9, RM13 and RM7 is quoted and booked the same way as anywhere else. We cover properties on Exeter Road, Plumtree Close and Rodwell Place. Dagenham is on the B178, so it’s easy for us to get to with everything needed for sand mastic. Other places close to Dagenham include Becontree (1 mile north-west), Dagenham Green (1 mile south-west), Beam Park (1 mile south), South Hornchurch (1 mile south-east) and Hornchurch Marshes (2 miles south). Further out, we also cover London (11 miles west), City of Westminster (14 miles west), Marylebone (13 miles west), St Pancras (12 miles west), Shoreditch (10 miles west) and Walthamstow (9 miles west).
Local landmarks in Dagenham
Around Dagenham, our work takes us to homes and buildings near Dagenham Park Community School, Beam Valley Country Park and Cross Keys pub, among other places. For rail, the closest station is Dagenham Dock station, roughly 1.2 miles south-west of the centre. Well-known places in the area include Rush Green Hospital (1.5 miles north-east) and The Brewery (2.5 miles north). The countryside around Dagenham includes Dagenham Village Churchyard.
Also near Dagenham
More services for Dagenham
Your questions about sand mastic in Dagenham
I let a flat near Dagenham Dock station. Can you help?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Can you do sand mastic in Dagenham?
Yes. Our work covers London and the South East, and Dagenham is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Can old silicone round a sash window be swapped for sand mastic?
In most cases. We remove the silicone and clean the joint, then point it with sand mastic.
Do you guarantee sand mastic work?
Our one-year guarantee covers every job.
Are you fully insured?
Yes. We’re fully insured for domestic and commercial work.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
The process
The work is kept neat and contained to the area we are working on, so you can carry on as normal. The job usually takes a few hours for a single window, longer for several. In Dagenham, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- 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
- Try not to wet indoor joints just before the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Keep pets and children clear of the area while we work
Get a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll talk you through the work.
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What the job involves on each surface
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
Stone surrounds
We take care not to mark the stone when the old mastic comes out.
What affects the cost of sand mastic
Every job gets its own quote. These are the things that affect it:
- Working hours on commercial sites
- Whether there’s mould to deal with
- Whether the work is at height
- The number of rooms or windows
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- Photos by email, if that is easy
- Whether it has been sealed before
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
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.
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Landlords, agents and businesses in Dagenham
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
What happens if it’s left?
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic matches what was there, which can matter on listed and conservation-area homes. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in Dagenham, the repair is bigger than the sealant job would have been.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Why book with us
- Rated 4.9 stars on Google
- An ARBOMaster approved applicator
- Anti-fungal sanitary silicone in wet areas
- Quality sealants from Arbo and Everbuild
Take a look at what affects the cost and what customers say.