Mastic Sealing in Upper Upnor
Mastic sealing for building owners, managing agents and housing associations across Upper Upnor, by CSCS-carded applicators. CHAS accredited and fully insured.
- Occupiers reporting cold air round windows
- The same joint failures repeated across a portfolio
- Complaints coming in block by block
Mastic sealing near Upper Upnor
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 Upper Upnor
Sunlight and weather break mastic down over time. It stiffens, stops stretching and cracks most of all on the sunniest and most exposed elevations.
What tends to prompt an enquiry:
- Old repairs sealed over failed mastic
- Repeated reactive repairs to the same buildings
- Window mastic that has split and shrunk
- The same joint failures repeated across a portfolio
Trustees of buildings like St Philip & St James can bring frame and external mastic into a planned maintenance list.
What to look for in a quote
- Their pre-qualification and accreditations
- Their public liability cover
- Will CSCS-carded applicators be on site?
- The terms of the workmanship guarantee
Mastic sealing for commercial buildings in Upper Upnor
Our clients include managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios. Many prefer a planned programme to one-off visits and we quote and schedule each building in turn. We work on external wall and movement joints, balcony and threshold joints and window and door perimeters on blocks, and the usual reasons a site gets in touch are brittle perimeter mastic across a building and water getting in round frames after rain. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Upper Upnor is the same: the right product in a properly prepared joint.
Owners and agents with buildings around smaller places such as Upper Upnor tend to manage small terraces of association properties, converted barns and commercial units. Mastic around frames and on external joints wears out in time, whatever the building.
We stand by our work: 12 months, guaranteed. That covers our preparation and application.
- Place
- Upper Upnor (ME2)
- Region
- Medway
- Guarantee
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Places near Upper Upnor
More services for Upper Upnor
Diagnose, treat, sign off
On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, and the work usually takes a day or two for a single block, longer for an estate programme. Jobs in and around smaller places like Upper Upnor are normally planned as a single visit, so photos and measurements up front really help. That way the right products come on the day.
- Each block or building is walked and the failed joints recorded with the likely cause.
- We send a fixed quote that sets out the joints, the products and the programme.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- We remove the old mastic completely and clean the joint faces back.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
What we need from you
- Let us know about inductions and permits
- Send asbestos survey details if the building is pre-2000
- Point out parking and an unloading spot
Ask for a quote
For a fixed quote, ring 01277 525 020 or email us with the site address and an outline of the work. Our quote form is another easy route.
Read more
What we can’t put right
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:
- Glazing that needs replacing
- Materials that need asbestos testing before work
- Masonry that has broken away beside the joint
If you are not sure, just call 01277 525 020 or send details through our quote form and we will give you a straight answer.
What we seal
- Balcony and threshold joints
- Communal kitchens and washrooms
- Window and door perimeters on blocks
- External wall and movement joints
- Shopfronts below residential blocks
- Communal entrances and stairwells
Surface by surface
Communal areas
Entrance doors, screens and corridor junctions in communal areas all have sealant joints. Tidy, sound joints keep them looking cared for.
Commercial and mixed-use buildings
Tenants in commercial buildings need to keep trading so the work is phased.
FAQs: Upper Upnor
Is a smaller place like Upper Upnor outside your area?
Not at all. Upper Upnor is within our area. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.
Can you quote for a block close to Strood station?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. We work to your notice and access arrangements.
Can you take on resealing for a block portfolio?
Yes. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work, and we quote building by building or as a programme.
How soon can the area be used again?
Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.
Who decides which product is used?
Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
What if the old mastic contains asbestos?
Some mastics in pre-2000 buildings contain asbestos. We check the asbestos register or survey before disturbing it, and if it’s suspected, work stops until it’s tested.
Is mastic sealing guaranteed?
A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.
Blocks and managed buildings in Upper Upnor
Upper Upnor sits close to the coast, within about 2 miles. Sea-facing elevations take driven rain and salt, and their mastic shows it before the sheltered sides do. Upper Upnor sits in one of the drier corners of the country, the South East. Outside work still depends on dry joints, while the elevations that take the most sun tend to show hardened mastic first.
Student accommodation around universities such as University of Kent - Medway Campus (to the south-east of Upper Upnor) is normally managed block by block, which suits a planned mastic programme. For owners of several units at places like Castle View Business Centre, which lies south-west of Upper Upnor, one programme can deal with frame and external mastic across the lot.
Upper Upnor is about 2 miles north-east of Rochester, in Medway. We cover commercial sites throughout Upper Upnor. We work across 54 places in Medway, large and small. London is covered too, around 27 miles from Upper Upnor.
Commercial sites across ME2 are covered for mastic joints. If your site is on High Street, Upnor Road and Castle Street or close by, send details and we will quote for mastic joints. We also cover Lower Upnor (1 mile north-east), Wainscott (1 mile north-west), Chattenden (1 mile north), Hoo St Werburgh (2 miles north-east) and Cooling Street (3 miles north) for mastic joints. Further afield, our area takes in Gillingham (3 miles south-east), Chatham (3 miles south), Rainham (5 miles south-east), Luton (3 miles south), Park Wood (5 miles south-east) and Lordswood (5 miles south).
Near you in Upper Upnor
Around Upper Upnor, our work takes us to commercial buildings near The Kings Arms, Lower Lines Park and Waterfront University Technical College. You’ll also find Former Ordnance Store At Chatham Gun Wharf (1.4 miles south) and Waterfront UTC (1.3 miles south-east). The nearest railway station is Strood station, about 1.2 miles south-west of the centre. Other landmarks nearby include French Hospital (1.5 miles south-west) and Pentagon Shopping Centre (1.6 miles south). The countryside around Upper Upnor includes Gad's Hill and Rede Common.
Doing it in-house
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.
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.
Cost factors for mastic joints
Each job is priced on its own details. The things that drive the figure:
- Which sealant the job calls for
- Location, for remote and island sites
- Whether old sealant has to be cut out first
- Any access equipment needed
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.
What to include in your enquiry
Whether it’s one area or a whole building, the same details help:
- Asbestos survey details if the building is older
- The type of building and who uses it
- Photos of the joints, close up and from further back
- How the joints are reached, and at what height
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, speak to us on 01277 525 020 or send photos by email.