Surrey · England
Window & door mastic in Crowhurst, Surrey
Professional window mastic in and around Crowhurst, with old sealant always removed completely.
- Rushed sealant from a window installation
- Gaps where the sill meets the wall
- Rain getting in at the frame or under the sill
Window mastic for homes and businesses in Crowhurst
A cold draught around a closed window often comes from the frame edge. Resealing that joint can make a room feel noticeably less draughty. If the draught is through the window seals instead, we’ll tell you. We work on window sills, composite doors and patio & French doors, and people most often call us about water coming in at the bottom corners of a door and mastic that’s falling out in pieces.
Outdoor sealant needs dry, clean surfaces, so work on frames around Crowhurst is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
You’re covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.

- Location
- Crowhurst (RH7)
- Region
- Surrey
- Cover
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Signs you need window mastic in Crowhurst
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.
The problems people normally mention when they call include:
- Hard, cracked sealant around windows
- Whistling draughts around closed windows
- Old mastic that has gone black or come away
- Cracked sealant at the sill ends
For landlords with property near Godstone station, renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before booking
- The length of the guarantee
- Is VAT in the price?
- Which colour the sealant will be
- Who turns up on the day
Quotes for window mastic in Crowhurst
The price is agreed before any work begins. It takes into account:
- Working hours on commercial sites
- Access and height
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before any work starts.
Asking for a quote
When you contact us, these details help:
- Any previous sealing or DIY work
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
- How we’d reach the joints
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Windows and doors in Crowhurst
With historic houses such as Chartwell (about 4.7 miles north-east) nearby, there’s older building stock in the area around Crowhurst 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. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of St George, the joint between an old wall and a newer frame is normally the first place rain gets in.
Crowhurst is about 6 miles north of East Grinstead, in Surrey. Every kind of property in Crowhurst is covered for window mastic. The work is guaranteed for a year. Crowhurst is one of 395 towns and villages in Surrey we cover for window mastic. Crawley is on our list too, about 10 miles from Crowhurst.
Work in RH7 works the same way as everywhere else we cover. Neighbouring places we cover for window mastic include Crowhurst Lane End (1 mile north-west), Merle Common (1 mile north-east), South Godstone (2 miles north-west), Troy Town (2 miles east) and Tandridge (2 miles north-west). Within a short drive, we also cover Epsom (14 miles north-west), Horley (7 miles west), Redhill (7 miles west), Ewell (15 miles north-west), Reigate (8 miles west) and Caterham (6 miles north-west).
Local landmarks in Crowhurst
The closest station to Crowhurst is Godstone station, roughly 1.9 miles west. Nearby you will also find Haxted Watermill Museum (2.1 miles south-east) and Bletchingley Castle (4.7 miles north-west). For a walk, there’s Hedgecourt Lake and Botley Hill.
What we do, step by step
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes anything from an hour or two to a full day, depending on how many frames there are. Somewhere like Crowhurst needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Let us know about parking restrictions
- Mention if the joints have been sealed before
- Let us know if you’ve seen damp or leaks
Ask for a quote
For window mastic in Crowhurst, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before we start.
Related advice
DIY sealant or a professional job?
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, and the work is guaranteed for a year.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
Keeping the joints in good condition
So the new joints stay in good condition:
- Don’t use solvent cleaners on the joint
- Avoid blasting the frames with a pressure washer
- Don’t paint over the silicone
- Repaint timber before it’s bare
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
Also near Crowhurst
What else we do in Crowhurst
When it isn’t the sealant
Sealant is not the answer to every problem, and we will tell you before we start. It won’t solve:
- Faulty window hardware
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Draughts through the window seals rather than the frame
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.
What we seal
- uPVC windows
- Aluminium frames
- Patio & French doors
- Timber windows & doors
- Composite doors
- Window sills
Different surfaces, different methods
Timber windows & doors
Timber moves with moisture as well as heat, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.
Composite doors
A composite door usually sits in a plastic outer frame, and the joint around it is sealed like a window. The bead is colour-matched to the frame.
Crowhurst questions
Do you work for landlords with property near Godstone 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 drop us an email with the details for a clear quote.
Do you cover smaller places like Crowhurst?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Can you reach windows above the ground floor?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few pictures.
How do I get a quote for window mastic in Crowhurst?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or drop us an email and let us know what needs doing and where.
Does the work come with a guarantee?
Yes. All our work carries a 12-month guarantee, and we’re fully insured.
