Facade and window perimeter sealing in Newnham, Hampshire
Facade joint and window perimeter sealing on commercial buildings in Newnham and across Hampshire. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Damp patches beside frames after rain
- Air leaks through failed facade joints
- Perimeter joints where frames meet the structure
Need facade sealing in Newnham?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Our process
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. For a building around Newnham, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.
- 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.
- Both faces are cleaned and, where the product needs it, primed.
- Closed-cell rod fixes the depth, and the sealant grips two sides only.
- A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
- We walk the finished joints with you before handing over.
What we need from you
- Move anything stored against the joints
- Let building users know which areas are affected
- Send asbestos survey details if the building is pre-2000
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, ring 01277 525 020 or email the details over.
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How we handle facade sealing in Newnham
Facade joints are the line of defence between the weather and the building fabric. Once a perimeter seal fails, water tracks in around frames and panels. We remove failed sealant and install a new bead chosen for the joint and how far it moves. Most enquiries involve cold air coming in at window perimeters and failed sealant on precast panel joints, across shopfront frames, stone and brick facade joints and coping and flashing joints. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Newnham it comes down to the same thing: the right product in a properly prepared joint.
For a site near Newnham, 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.
A 12-month guarantee applies to all our work in Hampshire. Should something we installed fail, call the office on 01277 525 020 or email us and we’ll come back to it.
- Where
- Newnham (RG27)
- Wider area
- Hampshire
- Guarantee
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
Mastic packages on Newnham sites
There are a number of hotels within about 2 miles of Newnham. When hotels extend or refit, the work is typically squeezed between peak periods, mastic included. Newnham is about 41 miles from central London. 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.
For a contractor working at a hospital such as Basingstoke and North Hampshire Hospital, which lies west of Newnham, perimeter and facade sealing is planned around patients and deliveries. For contractors refurbishing units at places like Optrex Business Centre (1 mile north of Newnham), the mastic covers cladding panels, roller-door and window perimeters.
Newnham is about 5 miles east of Basingstoke, in Hampshire. Looking for facade sealing in Newnham? We can help. 723 places across Hampshire fall within our area, Newnham among them. Our Reading page has more on work in that area, about 12 miles away.
We cover the RG27 postcode districts. Streets here include Tylney Lane, Newnham Lane and Ridge Lane. Close to Newnham, our area also takes in Nately Scures (1 mile south), Hook Common (1 mile south-east), Up Nately (1 mile south), Hook (1 mile east) and Warnborough Green (2 miles south-east). Bigger towns within reach include Basingstoke (5 miles west), Farnborough (10 miles east), Fleet (7 miles east), Aldershot (10 miles east), Alton (9 miles south) and Yateley (8 miles north-east).
Around Newnham
For rail, the closest station is Hook station, roughly 1.2 miles east. Well-known places in the area include Odiham Castle (1.9 miles south-east) and Basing House (2.8 miles west). Open spaces near Newnham include Dogmersfield Lake and Tundry Hill.
FAQs: Newnham
Does your area include sites such as Optrex Business Centre, near Newnham?
Yes, sites like Optrex Business Centre are within our area, along with the rest of Newnham. A few photographs and the unit address let us price the work.
Is Newnham too small for you to travel to?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
Will you just go over the old sealant?
No. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Do you guarantee your work?
Yes. Workmanship is guaranteed for 12 months.
Is it okay to overlay old mastic?
No. Fresh silicone won’t grip cured silicone, so the existing bead is removed entirely and the joint cleaned back to sound material. That is what makes the new joint last.
Will your applicators have CSCS cards?
Yes. We use CSCS-carded applicators, as many construction sites ask for.
Can the sealant be colour-matched?
Often, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We’ll confirm the colours available for the specified product.
When to bring in a specialist
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.
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Aftercare for building managers
Your facilities or cleaning team can help the joints last. Share these points with them:
- Avoid patch repairs on failed facade joints
- Walk the elevations once or twice a year
- Share access with other external trades
- Avoid harsh cleaners on facade sealant
Look at perimeter and panel joints as part of routine building checks. Watch for splits, gaps at the edges, hardening and discolouration; note where they appear.
Deal with sections that fail early as soon as they show. A few metres resealed promptly can stop water damage spreading.
How the quote is worked out
We price every job individually. The main factors are:
- Removal of failed or old sealant
- Induction, permit and paperwork requirements
- Quantities, in metres or numbers
- Any access equipment needed
Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.
Details that help us quote
However big the job, these details speed things up:
- Where the site is, with the postcode
- Access details, including height
- Any dates the work must fit around
- The product your specification calls for
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email the details over.
Common problems we fix in Newnham
Sometimes the substrate is the problem: crumbling render, spalling concrete or flaking paint take the sealant with them. We tell you when the edges need repairing before resealing.
It’s worth sending us details if you spot any of the following:
- Failed sealant on precast panel joints
- Weathered joints at frame-to-structure perimeters
- Perimeter sealant that has split or peeled away
- Old perimeter mastic that has dried out
Historic houses such as The Vyne (to the west of Newnham) are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products.
Before you book anyone
- What the guarantee covers, and for how long
- How the joint faces will be prepared and primed
- Which product they’ll use, and why it suits the joint
- What level of public liability insurance do they hold?
What else we do in Newnham
How the job changes by surface
Coping and flashing joints
Not every coping or flashing leak is a sealant problem. We tell you if the fix is a roofing or metalwork job rather than a reseal.
Precast concrete panels
Joints between precast panels carry real movement. A sealant of the right movement class goes in over backing rod, primed where the maker specifies.