
Mastic sealant contractors in Marlow
Mastic sealing for Marlow, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Damp patches beside frames
- Estate-wide sealant that is simply worn out
- Cracked, hardened mastic round windows on a block
Mastic sealing near Marlow
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing for commercial buildings in Marlow
For blocks and buildings in Marlow and across Buckinghamshire, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Addresses, photographs of typical joints and a rough idea of quantities let us give a quick quote or we can visit. If you’re dealing with occupiers reporting cold air round windows and no planned programme for sealant, we can help, whatever the surface. Facilities teams, main contractors and managing agents in Marlow tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
For housing associations with stock in a town such as Marlow, mastic is easiest to handle as a planned programme. Work can move block by block, with you handling resident notices.
Every job we finish is backed by a 12-month workmanship guarantee, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.

- Location
- Marlow (SL7)
- Region
- Buckinghamshire
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Surface by surface
Communal areas
Entrance doors, screens and corridor junctions in communal areas all have sealant joints. Fresh joints make shared areas look looked after.
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.
How a job runs
When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before anything is cut or cleaned, and the work typically takes one or more days per building, depending on the joint lengths and the access. Parking and loading for town-centre jobs in Marlow are worth mentioning when you send details. On estates and business parks it’s typically simpler.
- We inspect each building and record the joints that have failed.
- The quote is fixed and split as suits you.
- We agree the programme and dates with you.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- Each building is checked and signed off with the 12-month guarantee.
What we need from you
- Arrange parking or a loading space
- Tell us which areas need to stay in use
- Send any specification or drawings in advance
Get a fixed quote
For a fixed quote, call the office on 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. You can also send details through our quote form.
Related advice
Looking after the joints
Cleaning and maintenance staff play a part too. Share these points with them:
- Avoid piecemeal callouts where you can
- Encourage occupiers to report problems at frames
- Share your contractor requirements early
- Check the asbestos register before any old mastic is disturbed
Keep bins, bikes and deliveries away from low-level joints where you can. Damage at low level is the most common reason communal joints fail early.
Budgets are easier to plan when sealant is part of planned maintenance. A programme can start with the worst buildings and work down the list.
For managing agents and facilities managers
CHAS accredited and a Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.
Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.
Doing it in-house
Redoing a failed joint usually costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
More services for Marlow
Frames, entrances and external joints in Marlow
Marlow lies roughly 30 miles out from central London. Managed blocks of flats are a big part of commuter-belt property. Marlow sits in one of the drier corners of the country, the South East. Even so, frame mastic only goes on in dry, workable conditions, while the elevations that take the most sun tend to show hardened mastic first.
Blocks of flats and mixed-use buildings often cluster around stations such as Marlow station (to the south-east of Marlow) and their window and balcony mastic tends to age at the same rate across a building. Owners of student blocks near Buckinghamshire New University (Wycombe Campus), 3.9 miles north of Marlow, can schedule frame and external mastic for the summer vacation.
Marlow is about 4 miles south of High Wycombe, in Buckinghamshire. If you’re looking for mastic sealing in Marlow, we can help, as we do across Buckinghamshire. Our Buckinghamshire coverage takes in 308 places, large and small. For work in that direction, see our Reading page (12 miles or so).
If you need mastic sealing in SL7, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Streets here include Station Road, High Street and Willowmead Square. Marlow sits on or close to the A404 and B482, which helps when planning parking and deliveries for the job. Just outside Marlow, we also work in Bisham (1 mile south), Marlow Bottom (1 mile north), Burroughs Grove (1 mile north), Temple (2 miles south) and Little Marlow (2 miles north-east). Nearby towns on our patch include High Wycombe (4 miles north), Chesham (12 miles north-east), Amersham (10 miles north-east), Beaconsfield (6 miles north-east), Chalfont St Peter (10 miles east) and Princes Risborough (11 miles north). As one of the bigger centres in Buckinghamshire, Marlow has a broad mix of commercial, public and industrial buildings.
What’s near Marlow
Locally, jobs take us to sites close to Butcher's Tap and Sir William Borlase's Grammar School and the streets around them. There’s a railway station in Marlow itself: Marlow station. A little further out are Eden (4 miles north) and High Wycombe Castle (4.1 miles north). The countryside around Marlow includes Carpenter's Wood.
When to call us in Marlow
Many failed joints were sealed without backing rod so the mastic is bonded on three sides. It can’t stretch properly and it tears.
Any of the following is a good reason to get the joints checked over:
- Repeated reactive repairs to the same buildings
- Old repairs sealed over failed mastic
- Draughts at frames across a block
- Damp patches beside frames
For owners of several units at places like Globe Business Park, 0.5 miles east of Marlow, one programme can deal with frame and external mastic across the lot.
Before you book anyone
- How the existing material will be dealt with
- Their approach to joint depth and backing
- How the joint faces will be prepared and primed
- How they handle RAMS and site documents
FAQs: Marlow
Will you price a mastic programme across our Marlow portfolio?
Yes. Portfolio-wide programmes are a regular request. Send the addresses and photos and we’ll give a fixed quote.
Do you cover business parks and estates near Marlow, such as Globe Business Park?
Yes. Estates, retail parks and business parks around Marlow, Globe Business Park among them, are all within reach. Photos and a short description are enough for a first look.
Do you supply RAMS and insurance details?
We are CHAS accredited, a Constructionline member and carry public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
Will residents or tenants be disturbed?
The work is planned around occupiers. Dates and areas are agreed with you so residents or tenants can be told and communal access is kept open.
Can weather delay the job?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Do you guarantee the mastic work?
There is a 12-month guarantee on our workmanship, backed by public liability insurance.
Will you just go over the old sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.