
Dummer facade sealing
Facade sealing for Dummer, from a contractor working since 2005. Fully insured and CHAS accredited.
- Weathered facade joints that have lost their grip
- Facade joints cracked through the middle
- Cladding panel joints that have opened up
Facade sealing near Dummer
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Common problems we fix in Dummer
Adhesive failure, where the sealant peels away from one face, usually comes from poor preparation. Dust, old sealant residue, damp or a missing primer stop it bonding properly, and the joint opens with the first real movement.
It’s worth sending us details if you spot any of the following:
- Perimeter joints where frames meet the structure
- Patch repairs that keep failing
- Cladding panel joints that have opened up
- Cold air coming in at window perimeters
Sites around Dummer get mastic sealed to the drawings and the programme, nothing improvised.
What to look for in a quote
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Can the work be phased to keep areas open?
- Which product they’ll use, and why it suits the joint
- Proof of insurance
Facade sealing for commercial buildings in Dummer
We don’t install glazing systems or replace glass. We handle the sealant joints that surround those elements: perimeter joints where frames meet the structure, panel joints and window perimeters with products suited to facade or glazing perimeter joints. We work on cladding panel joints, perimeter joints where frames meet the structure and coping and flashing joints, and the failures we’re asked to look at most are staining on stone next to old sealant and leaks at window and door perimeters. Searching for sealant specialists in Dummer? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
In the countryside around places like Dummer, conversion schemes put new frames into old stone, flint, brick or timber. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.
We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

- Place
- Dummer (RG25)
- Region
- Hampshire
- Cover
- A 12-month guarantee
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
When it isn’t the sealant
Some faults sit outside our scope, and we say so rather than covering them up:
- Cracked or spalling substrates that need repair before sealing
- Movement beyond what any sealant can handle
- Replacing glass or failed glazing units
If in doubt, speak to us on 01277 525 020 or use the quote form and we’ll say what we think.
Where we work in Dummer
- Perimeter joints where frames meet the structure
- Stone and brick facade joints
- Coping and flashing joints
- Cladding panel joints
- Window and door perimeters
- Shopfront frames
Contractors’ notes for Dummer
Central London is about 50 miles from Dummer. Towns within reach of London tend to keep building, from flats to offices and schools, and main contractors there need mastic that keeps to the programme. Rainfall across the South East, Dummer included, is lower than in many parts of the UK. Even so, frost and condensation on steel and glass are common on winter mornings, so the external programme keeps a little slack.
For a contractor working at a hospital such as Park Prewett Hospital, 5 miles north of Dummer, perimeter and facade sealing is planned around patients and deliveries.
Dummer is about 4 miles south-west of Basingstoke, in Hampshire. Looking for facade sealing in Dummer? We can help, as we do across Hampshire. 723 places across Hampshire fall within our area, Dummer among them. There’s a separate page for Reading, roughly 18 miles from Dummer.
Anyone looking for facade sealing in RG25 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. For a building on Down Street, Post Office Lane and Porters Close or nearby, send details and we will quote for facade joints. We also cover North Waltham (2 miles west), Farleigh Wallop (2 miles east), Kempshott (2 miles north), Hatch Warren (2 miles north-east) and Oakley (3 miles north). Further afield, our area takes in Basingstoke (4 miles north-east), Winchester (13 miles south-west), Fleet (15 miles east), Andover (14 miles west), Alton (9 miles south-east) and Tadley (10 miles north).
What’s near Dummer
Locally, jobs take us to sites close to The Queen Inn, among other places. The closest station to Dummer is Micheldever station, roughly 4.8 miles south-west. A little further out are Park Prewett Hospital (5 miles north). The countryside around Dummer includes Farleigh Hill.
More services for Dummer
Why deal with it now?
If access is already up for other work, resealing at the same time makes sense. Coordinating facade sealing with other external works avoids paying for access twice, saving a second set-up. Converted and older buildings near places like Dummer tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
Why appoint us
- Colours chosen to suit frames, cladding or finishes where possible
- Work carried out by CSCS-carded applicators
- Standard and matched colours in many product ranges
- Fully insured
Read what affects the cost and how we’re accredited.
On site: what to expect
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and the sealant is tooled off neatly. For work around Dummer, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.
- First we review photos, drawings or what we saw on a visit, and agree how each joint will be reached.
- The old bead is cut away completely, not overlaid.
- Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
- Backing rod, or bond-breaker tape in shallow joints, limits the depth.
- A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
- The completed runs are checked with you, then the 12-month guarantee applies.
Preparing the site
- Point out any areas we must not close
- For older buildings, check the asbestos register before work
- Share your working hours and any access restrictions
Request a quote
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, speak to us on 01277 525 020 or email us.
Advice
Doing it in-house
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
Your questions answered
Can the mastic package for our job in Dummer follow the site programme?
Yes. Send the programme and drawings, and we will plan the mastic to suit the stages. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Would you work within a site like Park Prewett Hospital?
Yes, provided the work is planned with the site’s estates team. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
How long before the joints can be used?
We’ll confirm how long the chosen product needs to cure.
Are you fully insured?
Yes. We’re fully insured, including public liability cover.
Will rain stop the work?
We can work through the year, but sealant needs a dry joint and temperatures within the product’s range. Frost and condensation on glass and steel are common on winter mornings, and we build that into the programme.
How long do sealant joints last?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
Do you need to see the site first?
It depends on the job. Simple work can often be priced from photographs, while larger or less clear jobs get a site visit first.
What the job involves on each surface
Render and coated surfaces
Sealant can only hold as well as the render or paint beneath it. Loose coatings are cleaned back first, and we will mention any edges that need repair.
Cladding panel joints
Panel joints on cladding and rainscreen systems take movement every day. The sealant has to match the movement and the panel finish, often a low-modulus silicone or hybrid.