Greater London · England
Window and door sealing in Fullwell Cross
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Fullwell Cross. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Gaps left after new windows were fitted
- Gaps between the frame and the inside reveal
- Gaps where the sill meets the wall
Window mastic in Fullwell Cross, done properly
Colour matters on a frame. We can seal in white, brown, anthracite grey, black or clear, so the bead blends with the window rather than framing it. If you have gaps left after new windows were fitted and gaps where the sill meets the wall, we can help, whatever the surface. Mastic man, silicone man or sealant specialist, the name varies; in Fullwell Cross, the job is the same: proper preparation and the right sealant for every joint.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out, in Fullwell Cross as anywhere.
The work is covered for a year after we finish. If anything isn’t right with it, call 07833 053749 or send us an email.
- Where
- Fullwell Cross (IG6, IG5, IG7)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 07833 053749
- Updated
- 26 October 2026
Common problems we fix in Fullwell Cross
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.
The problems people normally mention when they call are:
- Cold air getting in at the frame edge
- Mastic that has split away from the wall
- Sealant in the wrong colour for the frame
- Cracked sealant at the sill ends
For site and facilities teams at buildings such as Clore Tikva School, the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- Are they insured?
- How the joint is cleaned and prepared
- The length of the guarantee
- How much experience the applicator has
How we quote for window mastic
Jobs vary more than people expect. The main factors:
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- Mould in or behind the old joints
- When we can work, for business premises
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll go through it with you.
What we need to know
What to tell us when you ask for a quote:
- How we’d reach the joints
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- Where the job is, and your postcode
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you are ready, ring 07833 053749 or email us.
Places near Fullwell Cross
What else we do in Fullwell Cross
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Damp problems in the wall away from the window
- A frame that has rotted at the joint
- Draughts through the window seals rather than the frame
If in doubt, ring 07833 053749 or send us an email and we’ll say what we think before booking.
Surfaces we seal
- Aluminium frames
- Timber windows & doors
- Patio & French doors
- Composite doors
- uPVC windows
- Window sills
Landlords, agents and businesses in Fullwell Cross
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
Fullwell Cross questions
I let a flat near Seven Kings station. Can you help?
Yes, we work for landlords and letting agents. You can call 07833 053749 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Do you cover Fullwell Cross for window mastic?
Yes, Fullwell Cross is within the area we cover. Our work covers London and the South East. You can ring 07833 053749 or email us and tell us what needs doing.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
How long should I leave it?
Different products cure at different speeds, so please follow the time we give you.
Can you match the sealant to my frames?
Yes, we choose a colour to suit the frame. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Where do you work from?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
How long does it take to reseal the windows on a house?
A handful of frames is a short visit. You will get a timescale with the quote.
What happens on the day
There isn’t much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours for a handful of frames, longer for a whole house from start to finish. In Fullwell Cross, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
- Keep children and pets away from the work area
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.
Advice
Should I try it myself first?
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.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Why deal with it now?
Working on frames from a ladder with a sealant gun is not easy, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
Why choose Mr Mastic in Fullwell Cross
- 180+ five-star Google reviews
- Full insurance on every job
- Homes, businesses and hotels
- Colour picked to suit the job
Take a look at our cost guide or our reviews.
Fullwell Cross homes and the weather
In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking. Historic houses like Valentines Mansion (about 1.8 miles south-west) are a reminder that the area around Fullwell Cross has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Homes close to St Francis of Assisi include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Seven Kings station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Fullwell Cross is about 2 miles east of Woodford, in Greater London. Our applicators cover window mastic for homeowners, landlords and businesses in Fullwell Cross and nearby, as part of our work across Greater London. We cover 786 towns and villages across Greater London, large and small.
Postcode districts we cover here for window mastic: IG6, IG5 and IG7. We cover properties on Horace Road, High Street and Sydney Road. Other places close to Fullwell Cross include Fairlop (1 mile north), Barkingside (1 mile south), Newbury Park (1 mile south), Gants Hill (1 mile south) and Redbridge (2 miles south-west). Larger places within reach include 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 (8 miles south-west).
Landmarks near Fullwell Cross
In Fullwell Cross, that means homes and buildings near Kantor King Solomon High School, Fairlop Waters and The New Fairlop Oak pub, among other places. The nearest railway station is Seven Kings station, about 2.3 miles south. A little further out are Redbridge Museum (2.6 miles south) and Claybury Hospital (0.8 miles north-west). The countryside around Fullwell Cross includes Hainault Lodge and Highams Park Lake.