Brighton and Hove · England
Window Mastic in Whitehawk
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Whitehawk. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Cracked or shrunken mastic around the frame
- Leaking joints at the ends of sills
- Water coming in at the bottom corners of a door
Window mastic for homes and businesses in Whitehawk
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. Common call-outs are for whistling draughts around closed windows and cracked or shrunken mastic around the frame, across patio & French doors, uPVC windows and timber windows & doors.
Homes around Whitehawk range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Whitehawk (BN2)
- Region
- Brighton and Hove
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Landlords, agents and businesses in Whitehawk
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
We also work for property managers and facilities teams. We can quote a run of properties together.
What happens if it’s left?
A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. Around Whitehawk, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
What you get with us
- Trusted Arbo and Everbuild sealants
- Experience in homes, commercial sites and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- Tidy, careful work
Read what affects the cost or our reviews.
Surface by surface
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
An exposed front door gets wind-driven rain. Those corners get the most care.
Quotes for window mastic in Whitehawk
The price is agreed before any work begins. It’s based on:
- The number and length of the joints
- Any mould that needs treating
- Access and height
- Working hours on commercial sites
Combining jobs into one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Helping us quote
To make quoting easier, let us know:
- If it’s domestic, commercial or a hotel
- Photos by email, if that’s easy
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
Every job is quoted individually. Simply phone 0345 464 0079 or send us an email and describe the job, and photos are welcome.
Windows and doors in Whitehawk
Whitehawk is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around window and door frames, especially on the side facing the sea. Historic houses like Royal Pavilion (about 1.4 miles west) are a reminder that the area around Whitehawk 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 Cuthman's include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in. Schools such as City Academy Whitehawk are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Whitehawk is about 1 mile south-east of Brighton, in Brighton and Hove. Whether you’re in the middle of Whitehawk or further out, we cover window mastic for every kind of property, from flats and houses to offices and hotels. Whitehawk is one of 30 towns and villages in Brighton and Hove where we work.
Our applicators cover all of the BN2 postcode area for window mastic and the streets around it. Whether your property is on Peel Road, Manor Road and Craven Road or a nearby road, our applicators can take on the job. Neighbouring places we cover for window mastic include Kemptown (1 mile south-west), Hanover (1 mile west), Carlton Hill (1 mile west), Bevendean (1 mile north) and Brighton (1 mile north-west). Larger places within reach include Brighton and Hove (4 miles west), Hove (3 miles west), Aldrington (4 miles west), Withdean (3 miles north-west), Hangleton (5 miles north-west) and Patcham (3 miles north-west).
Near you in Whitehawk
We work in homes and buildings around St Mary's Hall, Whitehawk Hill and Longhill High School, among other places. Whitehawk’s nearest station is Brighton station, about 1.6 miles west of the centre. A little further out are Brighton Motor Museum (0.7 miles south-west) and Royal Sussex County Hospital (0.6 miles south-west). Open spaces near Whitehawk include Newmarket Hill and Whitehawk Hill.
Towns and villages near Whitehawk
What else we do in Whitehawk
What we do, step by step
Good joint work is mostly preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it usually takes anything from an hour or two to a full day, depending on how many frames there are. For a job in Whitehawk, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- 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.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Mention any tricky access
- Tell us about any water getting in
Ask for a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, ring 0345 464 0079 or drop us an email.
Related advice
Your questions about window mastic in Whitehawk
Will you come out to Whitehawk?
Yes. Whitehawk is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Brighton station?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
How long before the joint can be used?
That depends on the sealant used, so follow the cure time we give you.
Are you insured?
Yes. We’re fully insured.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.
How do I get a quote for window mastic in Whitehawk?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
When to call us in Whitehawk
Timber windows bring their own problems. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
The problems people generally mention when they call are:
- Cold air getting in at the frame edge
- Cracked sealant at the sill ends
- Rain getting in at the frame or under the sill
- White mastic on grey or black frames
Letting a property close to Brighton station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Comparing quotes
- What the quote includes, VAT included or not
- Whether they’re fully insured
- Whether you can choose the colour
- What happens if they find a problem under the old sealant
Should I try it myself first?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.