Greater London · England
Pinner Green Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Pinner Green, backed by a one-year guarantee. Ask us for a quote.
- Tired mastic found when preparing windows for paint
- Mastic worn away on windows facing the weather
- Gaps between timber frames and stone or brick
Sand mastic in Pinner Green, done properly
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. We are often asked to deal with silicone on a period window that looks wrong and draughts and rain around sash boxes, on brick reveals, period & listed homes and tenement windows.
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.
Each job carries a 12-month guarantee.
- Place
- Pinner Green (HA5, HA6)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Honest limits
It helps to know what we can’t do:
- Whether work needs listed building consent
- Sashes that rattle, stick or won’t open
- Putty and glazing repairs
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Surfaces we seal
- Period & listed homes
- Sash and case windows
- Tenement windows
- Timber door frames
- Brick reveals
- Stone surrounds
Why deal with it now?
An open joint round the frame lets weather in. Water can get to the frame and the masonry, so dealing with it now protects both. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Pinner Green, the repair is bigger than a sealant job.
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Why choose Mr Mastic in Pinner Green
- One-year guarantee on every job
- Tidy, careful work
- Any old sealant cut out fully, not covered over
- Arbo and Everbuild products
Take a look at our cost guide or what customers say.
Pinner Green: your questions answered
Can you help a landlord with a rental near Hatch End station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Do you cover Pinner Green for sand mastic?
Yes, Pinner Green is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear price.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Is there any odour?
Sometimes, a little. It fades as the sealant cures.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Where are you based?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Places near Pinner Green
What else we do in Pinner Green
How the visit works
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours per window, depending on the condition of the joints. For a job in Pinner Green, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll take it from there.
Advice
Surface by surface
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.
Sash and case windows
The mastic round a sash window is on show so we finish it carefully.
Landlord and commercial work in Pinner Green
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Sort the mastic before the decorators arrive
- Avoid patching sand mastic with silicone
- Ask the planning authority about consent for listed or conservation-area homes
- Make sure water runs off the sill
Do not run silicone over the new mastic. If anything cracks, get it looked at before trying a quick fix.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens as more mastic falls out.
Quotes for sand mastic in Pinner Green
Some jobs are bigger than they look, and some smaller. The main factors:
- Which sealant suits the joint
- How many areas need sealing
- Any mould that needs treating
- Working hours on commercial sites
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- If someone has resealed it before
- The address or postcode of the job
- How we’d reach the joints
- The problem you’ve noticed
We do not publish a price list. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or send us an email.
Frames and glazing around Pinner Green
In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking. With historic houses such as Headstone Manor (about 1.7 miles east) nearby, there’s older building stock in the area around Pinner Green as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Managing a site like Harlyn Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. In the older streets around Christian Science Church, the joint between an old wall and a newer frame is usually the first place rain gets in. Rented homes near Hatch End station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Pinner Green is about 2 miles north-east of Ruislip, in Greater London. For sand mastic in and around Pinner Green, please phone 0345 464 0079 or email us for a quick quote. We cover Greater London from our Crawley base. Pinner Green is one of 764 places in Greater London where we work. We also work in London, around 15 miles away.
Postcode districts we cover here for sand mastic: HA5 and HA6. We cover properties on Love Lane, Tudor Road and Chapel Lane. Other places close to Pinner Green include Pinner (1 mile south-east), Eastcote (1 mile south), North Harrow (2 miles south-east), Roxbourne (2 miles south) and Rayners Lane (2 miles south-east). Within a short drive, we also cover London (15 miles south-east), City of Westminster (12 miles south-east), Marylebone (12 miles south-east), Kensington (11 miles south-east), St Pancras (13 miles south-east) and Shoreditch (14 miles east).
What’s near Pinner Green
Typical jobs here are in homes near The Oddfellows Arms, UTC Heathrow and Eastcote House Gardens, among other places. The nearest railway station is Hatch End station, roughly 1.3 miles north-east of the centre. Other landmarks nearby include Northwood and Pinner Cottage Hospital (0.9 miles north-west) and St. George's Shopping Centre (2.6 miles south-east). The countryside around Pinner Green includes Harrow Weald Common and Horse Shoe Bay.