Kent · England
Window & door mastic in Romney Street, Kent
Window mastic in Romney Street from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Leaking joints at the ends of sills
- Damp patches on the reveal after heavy rain
- Rushed sealant from a window installation
For landlords and businesses
If you manage several properties in or around Romney Street, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Window mastic in Romney Street, done properly
Some gaps around frames are far deeper than they look. Filling it with sealant alone leaves a joint that can’t move properly, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. If you have hard, cracked sealant around windows and water coming in at the bottom corners of a door, we can help, whatever the surface.
Homes in small places like Romney Street often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
All our work comes with a 12-month guarantee.
- Where
- Romney Street (TN15)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Different surfaces, different methods
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. It comes out, deep gaps get backing rod and the joint is resealed.
Composite doors
Composite doors are normally hung in an uPVC-type frame, so its perimeter joint is sealed much like a window. The bead is colour-matched to the frame.
Questions from Romney Street
Do you cover Romney Street for window mastic?
Yes, Romney Street is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.
Will you come out to Romney Street?
Yes. Romney Street is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all.
Is it OK to seal over old sealant?
No, and we never do. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
What information do you need?
A short description and the location, with photos by email if possible. We will ask anything else we need to know.
Do you have insurance?
Yes. We’re fully insured.
Do you work for letting agents?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels.
How long will my window job take?
Allow a few hours for a few frames, or a day or more for a whole house. Access and how stubborn the old mastic is affect the time most.
Common problems we fix in Romney Street
Frames are never completely still. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. If the sealant cannot stretch, it splits.
The problems people usually mention when they call are:
- Untidy mastic left by window fitters
- Gaps where the sill meets the wall
- Cracked or shrunken mastic around the frame
- Draughts coming in around windows and doors
Rented homes near Shoreham (Kent) station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
What your quote should include
- How hidden problems are handled
- What product goes in the joint
- When the joint can take water or movement
- Whether all the old sealant comes out first
Honest limits
Sealant is not the answer to every problem, and we’ll tell you before we start. Sealant will not put right:
- Damp problems in the wall away from the window
- Faulty window hardware
- Soft or decayed wood in the frame
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Patio & French doors
- uPVC windows
- Timber windows & doors
- Window sills
- Composite doors
- Aluminium frames
Window mastic in Romney Street: local notes
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. Historic houses like Lullingstone Castle (about 2.3 miles north-west) are a reminder that the area around Romney Street has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
In the older streets around Church of Saint Mary the Virgin, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Romney Street is about 4 miles north-east of Sevenoaks, in Kent. Wherever you are in the TN15 postcode area, our applicators can take on window mastic. We cover 922 towns and villages across Kent, large and small. For nearby work, see our London page (18 miles or so).
We cover every part of the TN15 postcode area for window mastic. That includes homes and businesses on Bower Lane and Romney Street and the roads around them. If you are just outside Romney Street, we cover East Hill (1 mile north-east), Knatts Valley (1 mile east), Woodlands (1 mile south-east), Cotman's Ash (1 mile south-east) and Kemsing (2 miles south). Further out, we also cover Maidstone (14 miles east), Dartford (8 miles north), Sevenoaks (4 miles south-west), Royal Tunbridge Wells (14 miles south), Gravesend (10 miles north-east) and Tonbridge (9 miles south).
Local landmarks in Romney Street
Locally, jobs take us to homes and businesses close to Kemsing Down. Romney Street’s nearest station is Shoreham (Kent) station, roughly 1.6 miles west. Well-known places in the area include Otford Heritage Centre (2.1 miles south-west) and Kemsing Castle Bank (1.7 miles south).
Also near Romney Street
Other services in Romney Street
How the visit works
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. It generally takes most of a day for a typical house, less for a few frames. In a small place like Romney Street, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Keep children and pets away from the work area
- Mention any parking rules near the property
- Tell us about any water getting in
Get a quote
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand, and we will take it from there.
Read more
Aftercare tips
A little care helps the new joints last. We recommend:
- Avoid blasting the frames with a pressure washer
- Walk round the house once a year and look at the joints
- Keep timber frames painted
- Wipe condensation off the frames
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.