Dunn Street facade sealing
We carry out facade joint and window perimeter sealing on commercial buildings in Dunn Street and the surrounding area. Send photographs or drawings for a fixed quote.
- Previous reseals run over old sealant
- Draughts around frames and panels
- Water coming in around window frames
Facade sealing across Dunn Street
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Common questions from Dunn Street clients
Is Dunn Street too far out for you?
Not at all. Dunn Street is within our area. We work across Greater London and the South East. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.
Can you work at a site such as Hempstead Valley Shopping Centre, by Dunn Street?
Yes. Our area takes in Dunn Street and its surroundings, with estates and business parks such as Hempstead Valley Shopping Centre included. Send details of the unit and the work through our quote form for a quick quote.
Will rain stop the work?
Wet joints or temperatures outside the product’s range mean waiting. We plan for weather and keep you updated throughout the job.
Who decides which product is used?
Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Can you look at water coming in around a frame?
Yes. We check the sealant joints and report what we find. Where the cause seems to be elsewhere, we’d rather tell you than reseal pointlessly.
When is resealing likely to be due?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
Does weather matter for sealant work?
Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.
Facade sealing for commercial buildings in Dunn Street
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, using sealants classified for facade or glazing use. The enquiries we see most involve air leaks through failed facade joints and staining on stone next to old sealant, across coping and flashing joints, window and door perimeters and perimeter joints where frames meet the structure. For commercial sealant work in Dunn Street, you deal with one contact from quote to sign-off, whether it’s one building or several.
For a site near Dunn Street, the mastic visit is planned so the right sealants, primers and backing rod are on hand. 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: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Dunn Street (ME7)
- Region
- Kent
- Cover
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
What we can’t put right
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Joints whose design needs changing by the specifier
- Cracked or spalling substrates that need repair before sealing
- Leaks from roofs, gutters or failed flashings rather than sealant joints
If you are not sure, just speak to us on 01277 525 020 or email the details over and we’ll give you a straight answer.
Surfaces we seal
- Coping and flashing joints
- Stone and brick facade joints
- Shopfront frames
- Window and door perimeters
- Perimeter joints where frames meet the structure
- Cladding panel joints
Also near Dunn Street
Other services in Dunn Street
Owners, agents and contractors
When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.
Our process
At the end of each section, the masking comes off, the area is cleaned and every joint is checked. Where the sealant needs time to cure before use, we tell you and sign the area. Rural sites near Dunn Street may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.
- We look at the joints, the drawings and the access before pricing.
- The old bead is cut away completely, not overlaid.
- Both faces are cleaned and, where the product needs it, primed.
- Backing rod, or bond-breaker tape in shallow joints, limits the depth.
- The new sealant goes in and is tooled firmly onto both faces.
- We walk the finished joints with you before handing over.
What we need from you
- Send any specification or drawings in advance
- Tell us which areas need to stay in use
- Arrange parking or a loading space
Quotes
Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings that you can work with. For a chat about it beforehand, speak to us on 01277 525 020 or email drawings and photos.
Advice
What affects the price in Dunn Street
Before we quote, we look at:
- Induction, permit and paperwork requirements
- How accessible the joints are
- The total length or number of joints
- Whether old sealant has to be cut out first
What a job costs comes down to the quantity of joints, how much old material needs removing and the access. Call for a fixed quote when you’re ready.
What we need to price the job
Good information means a firmer quote. When you get in touch, include:
- How the joints are reached, and at what height
- Whether an asbestos survey exists
- Clear photos of the problem areas
- Rough lengths or quantities, or drawings if you have them
For a fixed quote, ring 01277 525 020 or email a schedule or drawings with the site address and an outline of the work. You can also send details through our quote form.
Aftercare for building managers
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. Our advice:
- Report water ingress at frames as soon as it shows
- Never let anyone seal over old sealant
- Add perimeter sealant to planned maintenance checks
- Brief window cleaners about newly sealed joints
Keep a note of which product went in and when. Future work can then match the product and colour without guesswork.
Tie resealing in with redecoration, cladding repairs or other access. Sharing the access keeps the cost down and limits disruption.
Facade sealing in Dunn Street: the local picture
Rainfall across the South East, Dunn Street included, is lower than in many parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so we time external mastic for dry faces and agree it with the site team. At about 31 miles from central London, Dunn Street is within reach of the capital. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and main contractors there need mastic that keeps to the programme.
On a healthcare site such as Spire Alexandra Hospital (1.9 miles west of Dunn Street), new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully. Building work at universities like University for the Creative Arts - Rochester, 4.4 miles to the north-west of Dunn Street, is often timed for the summer, mastic included. For contractors at a school such as Swingate Primary School, sealing has to be finished before term starts.
Dunn Street is about 3 miles south-east of Chatham, in Kent. We cover commercial sites throughout Dunn Street, for single jobs and planned programmes alike. Our Kent coverage takes in 931 places, from busy centres to rural villages. Our London page has more on work in that area, about 31 miles away.
Postcode districts covered here: ME7 for facade joints. Nearby places we also cover include Lidsing (1 mile north-west), Bredhurst (1 mile north-east), Scragged Oak (1 mile south-east), Kemsley Street (1 mile north-east) and Lower Cox Street (1 mile south-east). Nearby towns on our patch include Maidstone (5 miles south-west), Sittingbourne (7 miles east), Gravesend (11 miles north-west), Tonbridge (15 miles south-west), Faversham (14 miles east) and Northfleet (12 miles north-west).
Local landmarks in Dunn Street
We work on buildings around South Wood and The Harrow pub, among other places. The closest station to Dunn Street is Rainham (Kent) station, roughly 3.3 miles north-east of the centre. Other landmarks nearby include Medway megaliths (3.1 miles west) and KIMS hospital (2.8 miles south). Not far away are Burham Down and Boxley Hills.
What the job involves on each surface
Coping and flashing joints
Sometimes the coping or flashing itself has failed. We tell you if the fix is a roofing or metalwork job rather than a reseal.
Cladding panel joints
Where panels are sealed rather than open-jointed, the bead is part of the weather line. Failed runs are cut out and rebuilt end to end to the correct depth.