West Sussex · England
Window & door mastic in Kirdford, West Sussex
Window mastic in Kirdford from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Cracked internal joints between frame and plaster
- Water coming in at the bottom corners of a door
- Rushed sealant from a window installation
Window mastic in Kirdford, done properly
The new joint does not have to be white. We can seal in white, brown, anthracite grey, black or clear, so the line suits the frame instead of standing out. If you are dealing with rain getting in at the frame or under the sill and untidy mastic left by window fitters, we can put it right, whatever the surface.
Around Kirdford, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Each job carries a 12-month guarantee, large or small.
- Where
- Kirdford (RH14)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Repaint timber before it’s bare
- Make sure the drainage slots are not blocked
- Use gentle cleaners on frames and sealant
- Walk round the house once a year and look at the joints
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
When to call us in Kirdford
On timber frames, paint and putty build up around the joint. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.
The problems people generally mention when they call include:
- Draughty joints inside around the window
- White mastic on grey or black frames
- Untidy mastic left by window fitters
- Water coming in at the bottom corners of a door
Letting a property close to Billingshurst station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before booking
- Whether you can choose the colour
- What the cure time is
- Who does the work, and how experienced they are
- How hidden problems are handled
What the job involves on each surface
Composite doors
A composite door normally sits in a plastic outer frame, and the joint around it is sealed like a window. We match the colour to the frame.
Window sills
The end joints of a sill tend to fail before the rest. A tight seal at each end keeps rain out of the wall.
Why act early in Kirdford
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly, and it’s easier while the walls are being worked on anyway. Older cottages and farmhouses around Kirdford can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
Why us?
- We never seal over old sealant
- Homes, businesses and hotels
- One-year guarantee on every job
- We leave the area clean and tidy
Take a look at what affects the cost and customer reviews.
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Broken hinges, locks or handles
- Soft or decayed wood in the frame
- A door that needs adjusting, rehanging or new seals
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- uPVC windows
- Patio & French doors
- Aluminium frames
- Composite doors
- Timber windows & doors
- Window sills
Places near Kirdford
What else we do in Kirdford
What we do, step by step
The work is kept neat and contained to the joints we are treating, so you can get on with your day. Expect the work to take a morning for a couple of windows and a door. In a small place like Kirdford, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
Getting a quote
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or email us with the details, and photos are welcome.
Related advice
Landlords, agents and businesses in Kirdford
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
What window mastic looks like in Kirdford
With historic houses such as Petworth House (about 4.1 miles south-west) nearby, there’s older building stock in the area around Kirdford 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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you live in an older home near The Parish Church of St John the Baptist, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Kirdford is about 10 miles west of Horsham, in West Sussex. Every kind of property in Kirdford is covered for window mastic, old or new, large or small. Every job comes with our 12-month guarantee. Kirdford is one of 371 towns and villages in West Sussex we cover for window mastic. Our Crawley page covers work nearby, about 17 miles away.
Our applicators cover all of RH14 for window mastic. Streets in the area include Oakside, Poplar Walk and Maple Drive, all of which we cover. If you’re just outside Kirdford, we cover Mackerel's Common (1 mile north), Balls Cross (2 miles west), Wisborough Green (2 miles east), Plaistow (2 miles north) and Ifold (2 miles north). Further out, we also cover Horsham (10 miles east), Littlehampton (15 miles south), Storrington (9 miles south-east), Billingshurst (5 miles east), Bewbush (15 miles east) and Angmering (15 miles south).
Around Kirdford
The nearest railway station is Billingshurst station, roughly 4.7 miles east. Green spaces nearby include Shillinglee Lake and The Mens.
Kirdford questions
Will you come out to Kirdford?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
I let a flat near Billingshurst station. Can you help?
Yes. We work for landlords and agents as well as householders. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear price.
How do I get a quote for window mastic in Kirdford?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or email us and let us know what needs doing and where.
When is the sealant fully cured?
It depends on the product. We tell you how long to leave it before we go.
Do you work on first-floor windows?
Yes, where they can be reached safely. Tell us about access when you get in touch and we’ll plan for it.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Kirdford.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new sealant bonds properly.