Facade Sealing in Downton
We carry out facade joint and window perimeter sealing on commercial buildings in Downton and the surrounding area. Send photos or drawings for a fixed quote.
- Cold air coming in at window perimeters
- Failed sealant on precast panel joints
- Staining on stone next to old sealant
Facade sealing for Downton sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
From enquiry to sign-off
We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. If others near Downton need work, visits can be combined. You’ll have a fixed quote before work starts.
- Access, site rules and timing are settled with the client up front.
- We only seal when joints are dry and within the product’s temperature range.
- Each joint is cut out and the edges inspected.
- Joints are cleaned, primed if required and fitted with backing rod.
- Sealant is gunned in and tooled hard onto both faces.
- We hand over with our 12-month workmanship guarantee.
Getting the site ready
- Tell staff and tenants when we will be in
- Have the specification and drawings to hand
- For older buildings, check the asbestos register before work
Quotes
A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or call 01277 525 020 or email us if you’d rather talk the job through.
Related advice
Facade sealing for commercial buildings in Downton
Sealant around windows, doors and cladding panels stops rain reaching the wall behind. When a perimeter bead splits or peels, water finds its way behind frames and into the structure. We remove failed sealant and install a new bead chosen for the joint and how far it moves. If you are dealing with new sealant peeling off old mastic and staining on stone next to old sealant, we can help, whatever the surface. Searching for sealant specialists in Downton? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
Sites around smaller places like Downton can be a fair drive from suppliers, so we come with everything the package needs. Send drawings or photographs and the programme and we’ll quote to suit.
What our 12-month guarantee covers is the way we did the job: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Downton (SO41)
- Wider area
- Hampshire
- Guarantee
- 12 months on every job
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Downton: questions and answers
Do you take on work at healthcare sites like Lymington New Forest Hospital?
Yes, hospitals are one of the sectors we cover. Work is phased so departments keep running, under the site’s own rules.
Can you work at a site such as Gore Road Industrial Estate, by Downton?
Yes. We cover Downton and the area around it, including industrial estates, business parks and retail parks such as Gore Road Industrial Estate. Photos and a short description are enough for a first look.
Are you CHAS accredited and on Constructionline?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Can the sealant be colour-matched?
It depends on the product. Some ranges offer many colours, others very few, so the available colours are confirmed with the quote.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
Should we check old sealant for asbestos?
It’s worth checking in any building from before 2000. The duty to manage asbestos sits with the dutyholder, and we will ask to see it. Suspect material is left alone until it has been tested.
Do you replace failed glazing units?
No. Glazing, windows and glass replacement aren’t part of our work. We seal the joints around them, including perimeters where frames meet the structure.
Should maintenance staff do it?
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
For managing agents and facilities managers
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in Downton can sit alongside others in a wider programme.
Why it’s worth doing now in Downton
Every shower drives water through a split perimeter bead. Behind the frame, that can mean damp plaster, stained ceilings, corroded fixings and damaged insulation. Resealing early costs far less than repairing what the water reaches. For buildings around smaller places like Downton, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
What you get with us
- Fully insured
- Work carried out by CSCS-carded applicators
- Work to your specification and the manufacturer’s guidance
- Fixed quotes based on photos, drawings or a visit
Read what affects the cost and our accreditations.
Sites and facades in and around Downton
With the shore within about 1 mile, Downton counts as a coastal location. On a coastal site, facade and perimeter joints face driven rain and, closer to the beach, salt, so joint design, primers and product choice deserve extra care. The South East is one of the drier parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so external mastic is timed for workable conditions and agreed with the site manager.
Older buildings in the area around Downton, such as Highcliffe Castle, 4.2 miles west of Downton, need care when sealed: the product has to suit soft or historic materials. Work at a hotel such as South Lawn Hotel, 1.3 miles to the east of Downton, tends to be programmed around bookings, mastic included. Projects at schools like Hordle CofE (VA) Primary School work to term dates, so mastic is programmed tightly.
Downton is about 3 miles west of Lymington, in Hampshire. We cover Downton and the rest of Hampshire, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 723 places across Hampshire fall within our area, Downton among them. Our Southampton page has more on work in that area.
If you need facade sealing in SO41, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Among the streets we cover are Hordle Lane and Shorefield Road, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Leagreen (1 mile east), Hordle (1 mile north), Ashley (2 miles north-west), Barton on Sea (2 miles west) and New Milton (2 miles north-west) for facade joints. A short drive away, we cover Totton (13 miles north), Lymington (3 miles east), Hythe (13 miles north-east), Ringwood (10 miles north-west), Dibden Purlieu (12 miles north-east) and Marchwood (13 miles north-east).
Landmarks near Downton
Around Downton, our work takes us to commercial buildings near The Arnewood School. For rail, the closest station is New Milton station, about 2 miles north-west of the centre. Well-known places in the area include Lymington New Forest Hospital (3.7 miles north-east) and Sammy Miller Motorcycle Museum (2.9 miles north-west). Green spaces nearby include Milford on Sea LNR.
Also near Downton
What else we do in Downton
How the quote is worked out
To price the job, we consider:
- How much there is to seal
- Whether the work must be split into stages
- Specialist products, such as fire-rated or hygienic sealants
- Backing rod, priming and other preparation
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.
What to include in your enquiry
However big the job, the same details help:
- Where the site is, with the postcode
- The type of building and who uses it
- Anything awkward about access or site hours
- Your programme or deadline
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call 01277 525 020 or send photos by email.
Honest limits
Part of a good diagnosis is knowing where sealant stops. We’ll tell you if the real problem is one of these:
- Damaged frames that need replacing
- Work on the window or framing system itself
- Water getting in through cracked render or porous masonry
Not sure which it is? You can speak to us on 01277 525 020 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Perimeter joints where frames meet the structure
- Window and door perimeters
- Coping and flashing joints
- Stone and brick facade joints
- Cladding panel joints
- Shopfront frames