
Mastic sealant contractors in Knights Enham
Mastic sealing in Knights Enham, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Damaged joints in communal entrances and corridors
- Draught complaints from residents or tenants
- Water getting in round frames after rain
Mastic sealing in Knights Enham
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing in Knights Enham
Owners and agents normally inherit a building’s mastic rather than choose it and it slowly wears out: it sits round windows and doors, along external joints and through communal areas. Once it cracks, hardens or comes away, draughts and water find a way in along with complaints. We work on communal kitchens and washrooms, window and door perimeters on blocks and external wall and movement joints, and the usual reasons a site gets in touch are movement joints with sealant missing and complaints coming in block by block. For commercial sealant work in Knights Enham, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
For buildings around smaller places like Knights Enham, we group work so one trip covers it. Photos of each elevation help us quote accurately.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and the quote explains what it covers.
- Where
- Knights Enham (SP10)
- Wider area
- Hampshire
- Guarantee
- 12 months on every job
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026

What sets the cost
Each job is priced on its own details. The main factors are:
- The size and state of each joint
- Site requirements such as inductions and permits
- Travel to remote or island sites
- Specialist products, such as fire-rated or hygienic sealants
We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.
Before you send an enquiry
However big the job, the same details help:
- Whether the building will be occupied during the work
- Asbestos survey details if the building is older
- Where the site is, with the postcode
- How the joints are reached, and at what height
To get a fixed quote, call the office on 01277 525 020 or use the quote form. You can also send details through our quote form.
Blocks and managed buildings in Knights Enham
Knights Enham sits in one of the drier corners of the country, the South East. Outside mastic still needs a dry joint and the right temperature, and the sunniest, most exposed sides of a building normally need attention first. Knights Enham is about 62 miles from central London. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres.
If you own or manage units on a site such as Glenmore Trade Park, which lies south of Knights Enham, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit. Buildings close to stations like Andover station, 1.5 miles south-west of Knights Enham, are often flats over shops, with frame mastic to keep sound.
Knights Enham is about 1 mile north of Andover, in Hampshire. Commercial clients in Knights Enham use us for work on mastic joints, as part of our coverage of Hampshire. Across Hampshire, 723 places are covered, Knights Enham among them. Our Southampton page has more on work in that area, about 22 miles away.
If you need mastic sealing in SP10, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Manor Copse and Newbury Road and the roads nearby. We also cover East Anton (1 mile south-east), Enham Alamein (1 mile north), Smannell (1 mile north-east), Upper Enham (1 mile north) and Finkley (1 mile east). Bigger towns within reach include Winchester (14 miles south-east), Hyde (13 miles south-east), Tidworth (8 miles west), Weeke (13 miles south-east), Kempshott (15 miles east) and Stanmore (14 miles south-east).
What’s near Knights Enham
Around Knights Enham, our work takes us to commercial buildings near Harrow Way Community School. For rail, the closest station is Andover station, about 1.5 miles south-west of the centre. A little further out are Finkley Down Farm Museum (1.2 miles south-east) and Andover War Memorial Hospital (1.3 miles south-west). The countryside around Knights Enham includes Mill Lake and Anton Lakes.
Signs you need mastic sealing in Knights Enham
Frames, panels and masonry expand and contract through the year, and the sealant takes up that movement. If the joint or the product wasn’t suited to the movement, it splits and fails early.
Site and facilities staff are often the first to spot these:
- A mix of products and colours from past repairs
- Water getting in round frames after rain
- Draught complaints from residents or tenants
- No planned programme for sealant
If you are responsible for a building such as Church of St Michael and All Angels, frame and door mastic needs the same attention as any other property.
What to look for in a quote
- The terms of the workmanship guarantee
- Will RAMS and insurance details be available?
- Which product they’ll use, and why it suits the joint
- Their public liability cover
On site: what to expect
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. Smaller jobs around Knights Enham can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.
- We check the asbestos register for older buildings and look at the joints.
- A fixed quote covers the joints, products and order of work.
- Failed mastic is removed completely.
- The joints are prepared and resealed with the right product.
- We finish each building before moving to the next.
Preparing the site
- Tell us your opening times and when work is allowed
- Point out parking and an unloading spot
- Send asbestos survey details if the building is pre-2000
Quotes
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.
Read more
When to bring in a specialist
The visible bead is only part of the job. 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 larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
What we can’t put right
We check first that sealant really is the fix. It won’t put right:
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
- Misted or failed double-glazed units
- Asbestos-containing sealant, which we don’t remove
If you are not sure, just ring 01277 525 020 or email drawings and photos and we will give you a straight answer before you book.
Where we work in Knights Enham
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Balcony and threshold joints
- Communal entrances and stairwells
- External wall and movement joints
Nearby places to Knights Enham
Also in Knights Enham
Questions we are asked in Knights Enham
Will you take on a block within reach of Andover station?
Yes. Blocks of any size are within what we do. Photos of each elevation help us quote accurately.
Is a smaller place like Knights Enham outside your area?
Not at all. Knights Enham is within our area. We cover Greater London and the counties of 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.
Do you check for asbestos in old sealant?
We don’t remove asbestos-containing materials. If old sealant is suspected, work stops until it’s tested, and the duty to manage asbestos sits with the dutyholder.
How many days will you need on site?
We plan the time on site around your programme and access. We will give you an estimate of time on site when we quote.
Can you follow the specification on our project?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.
How do you choose the sealant?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Will you just go over the old sealant?
No. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.
Leave it or put it right?
Draughts round window perimeters cost occupiers comfort, and they often blame the windows. In many cases, new perimeter sealant deals with it when the frames themselves are sound. Around Knights Enham, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we will quote for the lot.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Why us?
- One phone line for London, the South East and Scotland
- A range of standard colours, depending on the product
- Commercial sealant work since 2005
- A Constructionline member, so easy to vet
Take a look at our cost guide and our accreditations.