
Mastic sealant contractors in Hammerwood
Sealant work in Hammerwood for main contractors, managing agents and facilities managers: mastic sealing for building owners, managing agents and housing associations, with a fixed quote first.
- Estate-wide sealant that is simply worn out
- Movement joints with sealant missing
- Draughts at frames across a block
Mastic sealing for Hammerwood sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Common problems we fix in Hammerwood
In communal areas, joints take knocks from bins, bikes, buggies and deliveries, with joints near the floor and around doors suffering most. Cleaning products add to the wear.
Most enquiries start with something like this:
- Occupiers reporting cold air round windows
- Water getting in round frames after rain
- Failed external movement joints
- Estate-wide sealant that is simply worn out
If your remit includes a building such as Sackville School, frame and door mastic can be programmed for the holidays.
Questions to ask before you book
- What level of public liability insurance do they hold?
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Which product they’ll use, and why it suits the joint
- Can the work be phased to keep areas open?
How we handle mastic sealing in Hammerwood
Treatment starts with a proper look: what has failed, what caused it and whether new sealant will actually solve it. Old mastic is removed entirely, the faces prepared, primer used where the maker specifies it and new sealant tooled in, with backing rod setting the depth where it’s needed. The enquiries we see most involve no planned programme for sealant and the same joint failures repeated across a portfolio, on shopfronts below residential blocks, communal kitchens and washrooms and communal entrances and stairwells. A specialist sealant contractor works differently from a general builder: on jobs in Hammerwood, preparation and product choice get the time they need.
Rural conversions near places like Hammerwood often set modern frames into older stone, flint or brick. The mastic needs to suit an irregular masonry face and the look of the building.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

- Place
- Hammerwood (RH19)
- Region
- East Sussex
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Also near Hammerwood
More services for Hammerwood
Looking after buildings in and around Hammerwood
Hammerwood sits in one of the drier corners of the country, the South East. Even so, frame mastic only goes on in dry, workable conditions, and south- and west-facing elevations, which take the most sun and rain, often age first. Hammerwood is about 26 miles from central London. Within reach of London, blocks run by agents and associations are common around stations, and window and balcony mastic on them tends to age at the same rate.
Property owners at sites such as Riverview Business Park, 2.8 miles to the south of Hammerwood, can have mastic renewed between lettings. Trustees of buildings like Church of St Stephen can bring frame and external mastic into a planned maintenance list.
Hammerwood is about 3 miles east of East Grinstead, in East Sussex. If you are looking for mastic sealing in Hammerwood, we can help. We work across 308 places in East Sussex, large and small. Our Brighton page has more on work in that area.
We cover the RH19 postcode districts for mastic joints. We also cover Ashurst Wood (2 miles south-west), Cowden (2 miles east), Dormansland (2 miles north-west), Dormans Park (2 miles west) and East Grinstead (3 miles west) for mastic joints. Nearby towns on our patch include Crowborough (8 miles south-east), Uckfield (12 miles south), Heathfield (15 miles south-east), Wadhurst (13 miles east), Ridgewood (13 miles south) and Sandy Cross (15 miles south-east).
Landmarks near Hammerwood
For rail, the closest station is Dormans station, roughly 2.4 miles north-west of the centre. Other landmarks nearby include Bolebroke Castle (2.9 miles south-east) and Queen Victoria Hospital (1.9 miles west). Green spaces nearby include Hedgecourt Lake.
Owners, agents and contractors
If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.
What we can’t put right
Some faults sit outside our scope, and we say so rather than covering them up:
- Glazing that needs replacing
- Water coming in from the roof or rainwater goods
- Failed window or door frames, which need a window contractor
Not sure which it is? You can ring 01277 525 020 or email the details over and we’ll tell you honestly before you book.
Where we work in Hammerwood
- Communal entrances and stairwells
- Window and door perimeters on blocks
- External wall and movement joints
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- Balcony and threshold joints
Doing it in-house
Redoing a failed joint typically costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Questions we’re asked in Hammerwood
Is Hammerwood off your patch?
Not at all. Hammerwood is within our area. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.
Will you take on work at estates like Riverview Business Park, close to Hammerwood?
Yes. Estates, retail parks and business parks around Hammerwood, Riverview Business Park among them, are all within reach. Photos and a short description are enough for a first look.
Will you come and look before quoting?
That depends on the size and complexity of the job. Straightforward work can often be priced from photographs and measurements, while larger or less clear jobs get a site visit first.
Can you send RAMS and CSCS details before starting?
Let us know your requirements: tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We hold CHAS accreditation and Constructionline membership.
How do you choose the sealant?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Can you follow the specification on our project?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
What guarantee do you give on resealing?
There is a 12-month guarantee on our workmanship and we hold public liability insurance.
What the job involves on each surface
Window and door perimeters on blocks
On most blocks, the frame-to-wall joint is where failure shows first. We remove the failed mastic, prepare the faces, add backing rod if the joint is deep and reseal.
Communal areas
Communal entrances, stairwells and corridors have joints at door frames, screens, skirting and floor edges. Fresh joints make shared areas look looked after.
Our process
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. Rural sites near Hammerwood may need directions, gate codes or a contact on site. Send that with the details and we’ll confirm the plan with the quote.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- Joint faces are cleaned, backed and resealed.
- Buildings are completed in turn.
What we need from you
- Point out parking and an unloading spot
- Let building users know which areas are affected
- Let us know about inductions and permits
Quotes
Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. For a chat about it beforehand, ring 01277 525 020 or send details through our quote form.