East Sussex · England
Window Mastic in Robertsbridge
We cover Robertsbridge for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Hard, cracked sealant around windows
- Draughty joints inside around the window
- Cracked sealant at the sill ends
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Window mastic for homes and businesses in Robertsbridge
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. We work on timber windows & doors, composite doors and window sills, and the jobs we see most are gaps between the frame and the inside reveal and cracked or shrunken mastic around the frame.
Mastic can only go onto a dry, clean joint, so window work in Robertsbridge is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Big or small, it’s backed by our 12-month guarantee in Robertsbridge and across East Sussex.
- Place
- Robertsbridge (TN32)
- Wider area
- East Sussex
- Cover
- A year, on every job
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Robertsbridge homes and the weather
With historic houses such as Durhamford Manor (about 3.8 miles south-east) nearby, there’s older building stock in the area around Robertsbridge as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around Robertsbridge United Reformed Church, the joint between an old wall and a newer frame is usually the first place rain gets in. If you look after a building such as Salehurst Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Robertsbridge is about 9 miles north-west of Hastings, in East Sussex. Across the TN32 area, our applicators can take on window mastic. 289 places in East Sussex are on our list, large and small. You can also see our page for Brighton, roughly 28 miles from Robertsbridge.
We work across TN32 for window mastic. Whether your property is on Station Road, High Street and Glenleigh Walk or a nearby road, our applicators can take on the job. Neighbouring places we cover for window mastic include Northbridge Street (1 mile north-east), Salehurst (1 mile north-east), John's Cross (2 miles south-east), Mountfield (2 miles south) and Oxley's Green (3 miles south-west). Further out, we also cover Hastings (9 miles south-east), Bexhill-on-Sea (9 miles south), Hailsham (12 miles south-west), Crowborough (14 miles west), St Leonards (10 miles south) and Polegate (15 miles south-west).
Near you in Robertsbridge
Locally, jobs take us to homes and businesses close to The Ostrich Hotel and Robertsbridge Community College. Robertsbridge has its own railway station: Robertsbridge station. Nearby you will also find Ticehurst House Hospital (5.4 miles north-west). Open spaces near Robertsbridge include Senlac Hill.
Robertsbridge questions
Is Robertsbridge in your area for window mastic?
Yes, Robertsbridge is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
Will you come out to Robertsbridge?
Yes. Robertsbridge 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.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Can you do upstairs windows?
Yes, where they can be reached safely. Tell us about access when you get in touch and we will plan for it.
Does the work come with a guarantee?
Yes, with our one-year guarantee. Keeping drainage clear and checking the joints yearly helps them last.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can you seal the gap between the frame and the plaster indoors?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
What we do, step by step
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes a few hours for a few frames, or a day or more for a whole house. In a small place like Robertsbridge, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Mention any parking rules near the property
- Clear the area around the work
Ask for a quote
For window mastic in Robertsbridge, call 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
Related advice
Why deal with it now?
Working on frames from a ladder with a sealant gun is not easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. In a small place like Robertsbridge, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost reflects the work involved, not guesswork. That is why we ask about the job first and agree the price before starting.
What you get with us
- We leave the area clean and tidy
- A 12-month guarantee on all work
- We never seal over old sealant
- Trusted Arbo and Everbuild sealants
Take a look at our cost guide or customer reviews.
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Condensation trapped between the panes
- A frame that has rotted at the joint
- Damp coming through the wall itself rather than the frame joint
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
What we seal
- uPVC windows
- Composite doors
- Timber windows & doors
- Patio & French doors
- Window sills
- Aluminium frames
How we quote for window mastic
The quote reflects the job in front of us. We look at:
- The amount of work
- Any mould that needs treating
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
Asking for a quote
To make quoting easier, let us know:
- Photos by email, if that is easy
- What the problem is, such as mould, gaps, leaks or cracking
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before work begins.
How to look after the new joints
Aftercare is simple:
- Do not use solvent cleaners on the joint
- Avoid blasting the frames with a pressure washer
- Ventilate rooms so frames don’t stay wet inside
- Wash the frames with mild soapy water
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
What we are called out for in Robertsbridge
Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, and it lets go sooner than it should.
These are the problems we are asked about most:
- Whistling draughts around closed windows
- Gaps where the sill meets the wall
- Sealant in the wrong colour for the frame
- Black, perished sealant on frames
If you let a flat or house near Robertsbridge station, renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before you book
- What guarantee comes with the work
- What the cure time is
- What product goes in the joint
- How the colour is chosen