Greater London · England
Sand Mastic specialist in Fairlop
We cover Fairlop for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Cement or filler used on old window joints that has cracked
- Silicone on a period window that looks wrong
- Mastic dropping out of the joint
How we handle sand mastic in Fairlop
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder and built up by hand. On period homes, it looks right where silicone wouldn’t. Typical jobs include gaps round a timber door in stone or brick and a silicone bead on a sash window that spoils the look, across brick reveals, sash and case windows and tenement windows. Whether you are looking for a mastic man, a silicone specialist or a sealant company in Fairlop, Mr Mastic can help.
Many London homes are flats, with windows high above the street. In a converted house or block, the lease usually says who is responsible for the windows, so it’s worth checking before booking.
All our work comes with a 12-month guarantee, wherever you are in Greater London.
- Location
- Fairlop (IG6, IG7, IG5)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 07833 053749
- Updated
- 26 October 2026
Questions from Fairlop
Is parking a problem for a job in Fairlop?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Can you help a landlord with a rental near Seven Kings station?
Yes, rental work is part of what we do. You can call 07833 053749 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We will tell you what to expect for your job.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
How do I get a quote for sand mastic in Fairlop?
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’ll talk you through it.
Can sand mastic be painted?
It’s traditionally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Do you offer different sealant colours?
Usually, yes. White, clear and grey are common, and other colours are available for many products, and we’ll agree it with you first.
Nearby places to Fairlop
Also in Fairlop
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Sort the mastic before the decorators arrive
- Ask the planning authority about consent for listed or conservation-area homes
- Keep sills and gutters clear so water drains away
- Get any rot dealt with first
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
Surface by surface
Timber door frames
Sand mastic is used round timber door frames too. We renew it the same way as on windows.
Stone surrounds
Stone surrounds suit sand mastic well. The finish blends with the masonry.
Why act early in Fairlop
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. In a flat in Fairlop, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and agree the price before starting.
What you get with us
- More than 20 years in sealant work
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal silicone where joints get wet
- Domestic, commercial and hotel work
Read our cost guide and our reviews.
Honest limits
We won’t take on work that will not last, so here’s what sealant can’t put right:
- Whether work needs listed building consent
- Damaged stone surrounds
- Putty and glazing repairs
If in doubt, phone 07833 053749 or email us and we will say what we think.
Surfaces we seal
- Stone surrounds
- Sash and case windows
- Brick reveals
- Timber door frames
- Period & listed homes
- Tenement windows
Sand mastic in Fairlop: local notes
With historic houses such as Valentines Mansion (about 2.1 miles south) nearby, there’s older building stock in the area around Fairlop as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking.
If you let a flat or house near Seven Kings station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Fairlop is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Fairlop is about 2 miles east of Woodford, in Greater London. Whether you’re in the middle of Fairlop or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Across Greater London, we cover 786 places, Fairlop among them.
Postcode districts we cover here for sand mastic: IG6, IG7 and IG5. Streets in the area include Hazel Lane, Hobart Road and Hughes Road, and we cover them all. We also cover the places around Fairlop: Fullwell Cross (1 mile south), Barkingside (1 mile south), Newbury Park (2 miles south), Gants Hill (2 miles south) and Redbridge (2 miles south-west). We also work in nearby towns such as London (10 miles south-west), City of Westminster (12 miles south-west), Marylebone (11 miles south-west), Kensington (14 miles south-west), St Pancras (10 miles south-west) and Shoreditch (9 miles south-west).
Landmarks near Fairlop
In Fairlop, that means homes and buildings near Kantor King Solomon High School, Fairlop Waters and The New Fairlop Oak pub and the streets around them. The nearest railway station is Seven Kings station, roughly 2.5 miles south. Other landmarks nearby include Claybury Hospital (0.7 miles west) and Redbridge Museum (2.9 miles south). Not far away are Pole Hill and Highams Park Lake.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
What we’re called out for in Fairlop
Rain on the window surround works into any crack and loosens it further. Exposed elevations generally fail first.
People normally contact us when they notice something like this:
- Modern sealant on a period surround
- Gaps round a timber door in stone or brick
- Cement or filler used on old window joints that has cracked
- Mastic dropping out of the joint
In the older streets around St Francis of Assisi, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What your quote should include
- What happens if the job turns out different
- What preparation is included
- Who turns up on the day
- What the cure time is
What we do, step by step
On the day, we look over the joints with you first. Surfaces next to the work are protected before any work begins. The work generally takes a few hours for a single window, longer for several. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Move anything stored near the joints
- Where the joints are inside, avoid wetting them before we arrive
- Plan for the work area to be out of bounds to pets and children
How to get a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 07833 053749 or email us.