Surrey · England
Window Mastic in Ashford Common
Window mastic across Ashford Common and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Gaps left after new windows were fitted
- A bead that doesn’t match the frame
- Black, perished sealant on frames
Window mastic in Ashford Common, done properly
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that can’t move properly, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. Typical jobs include leaking joints at the ends of sills and sealant in the wrong colour for the frame, on timber windows & doors, composite doors and aluminium frames.
Many houses in smaller places like Ashford Common have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows.
There’s a 12-month guarantee on every job.
- Location
- Ashford Common (TW15, TW16)
- Region
- Surrey
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Why deal with it now?
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished, and it’s easier while the walls are being worked on anyway. In an older home around Ashford Common, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why Ashford Common clients choose us
- Colour agreed with you before we start
- A choice of colours where the product allows
- Trusted Arbo and Everbuild sealants
- An ARBOMaster approved applicator
See what affects the cost and customer reviews.
How to look after the new joints
So the new joints stay in good condition:
- Air rooms to keep condensation down around windows
- Repaint timber before it’s bare
- Keep jet washers away from the mastic
- Check the mastic once a year
Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.
A small gap around a frame only grows. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. A new joint closes it up.
FAQs for Ashford Common
Do you work for landlords with property near Upper Halliford station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Can you do window mastic in Ashford Common?
Yes. We work across London and the South East, and Ashford Common is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we’ll send you a clear quote.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Will the old sealant be removed?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Is the new sealant paintable?
Not normally, if it’s silicone. Tell us your decorating plans and we’ll pick a sealant to suit.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Do you need window mastic in Ashford Common?
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
Keep an eye out for any of the following:
- White mastic on grey or black frames
- Cracked or shrunken mastic around the frame
- Damp patches on the reveal after heavy rain
- Cracked internal joints between frame and plaster
For site and facilities teams at buildings such as Meadhurst Primary School, its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- What product goes in the joint
- The length of the guarantee
- How hidden problems are handled
- Whether VAT is included
What we can’t put right
In fairness, some problems need a different trade:
- A sash or casement that will not close properly
- A door that needs adjusting, rehanging or new seals
- A failed sealed unit that has misted up
If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
What we seal
- Aluminium frames
- uPVC windows
- Composite doors
- Patio & French doors
- Window sills
- Timber windows & doors
DIY versus a professional finish
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
What window mastic looks like in Ashford Common
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. Historic houses like Strawberry Hill House (about 4.6 miles east) are a reminder that the area around Ashford Common has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Homes close to St Saviour include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in. If you let a flat or house near Upper Halliford station, renewing tired window mastic between tenants heads off draught and damp complaints.
Ashford Common is about 1 mile north-west of Sunbury-on-Thames, in Surrey. Every kind of property in Ashford Common is covered for window mastic, old or new, large or small. The work is guaranteed for a year. Across Surrey, we cover 395 places, Ashford Common among them. London is on our list too, about 16 miles from Ashford Common.
Every address in TW15 and TW16 is within our area for window mastic, from the main roads to the quietest streets. Whether your property is on Saxon Road, Dane Road and Tudor Road or a nearby road, our applicators can take on the job. We also cover Littleton Common (1 mile south-west), Hounslow (1 mile north-east), Charlton (1 mile south), Sunbury-on-Thames (1 mile south-east) and Ashford (1 mile north-west). Larger places within reach include Guildford (14 miles south-west), Woking (10 miles south-west), Camberley (14 miles south-west), Epsom (10 miles south-east), Ewell (9 miles south-east) and Egham (5 miles west).
Around Ashford Common
Around Ashford Common, our work takes us to homes and buildings near Sunbury Park, Sunbury Manor School and Sunbury Manor School, among other places. For rail, the closest station is Upper Halliford station, roughly 0.9 miles south-east. Other landmarks nearby include Ashford Hospital (1.7 miles north-west) and Kempton Steam Museum (1.5 miles east). Not far away are St Ann's Hill and Kempton Park Reservoirs.
Also near Ashford Common
More services for Ashford Common
Landlord and commercial work in Ashford Common
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
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.
The process
You do not need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the work takes a few hours for a handful of frames, longer for a whole house for a typical job. Parking around Ashford Common is normally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
How to get a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job, and we’ll take it from there.