Mastic sealing for building owners and managing agents in Nether Wallop, Hampshire
Our CSCS-carded applicators take on mastic sealing for building owners, managing agents and housing associations in Nether Wallop. Send details for a fixed quote.
- Old repairs sealed over failed mastic
- Complaints coming in block by block
- Draughts at frames across a block
Mastic sealing across Nether Wallop
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
How we handle mastic sealing in Nether Wallop
In buildings from before 2000, some old mastics contain asbestos. We check the asbestos register or survey before any old sealant is cut out and if it’s suspected, work stops until it’s tested. We don’t remove asbestos-containing materials. We work on balcony and threshold joints, window and door perimeters on blocks and shopfronts below residential blocks, and the usual reasons a site gets in touch are complaints coming in block by block and worn sealant at communal door frames. Most enquiries from Nether Wallop start with one failed joint and grow into a wider look at the building: we look at the rest while we’re there and tell you what we find.
For owners with a single building near Nether Wallop, we plan to finish in one visit where possible. Send photographs of the frames and joints and we will give a fixed quote.
A 12-month guarantee applies to all our work in Hampshire. Should something we installed fail, phone 01277 525 020 or send photos by email and we will come back to it.
- Location
- Nether Wallop (SO20)
- Region
- Hampshire
- Cover
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
General trades versus a specialist
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Do you need mastic sealing in Nether Wallop?
The edges of the material itself sometimes break away for instance where render or brick edges crumble. If the edges are unsound, we say so before quoting the sealing.
What tends to prompt an enquiry:
- Failed external movement joints
- Old repairs sealed over failed mastic
- Brittle perimeter mastic across a building
- Draught complaints from residents or tenants
For a school such as Wallop Primary School, perimeter mastic on windows and doors is a holiday job.
What your quote should include
- Will RAMS and insurance details be available?
- What the guarantee covers, and for how long
- Whether their applicators hold CSCS cards
- Will failed sealant be removed rather than covered?
Maintenance after handover
Problems stay small when the joints are checked regularly. Specifically:
- Prioritise elevations facing the weather
- Share the asbestos register when you send details
- Track which buildings were done and when
- Encourage occupiers to report problems at frames
Encourage occupiers to report water or draughts at frames. Early reports catch failures before damage spreads.
One failed perimeter typically means others on the same building are close so a single failure is a sign to check the rest. A planned reseal saves repeated visits.
Planned mastic for Nether Wallop portfolios
Nether Wallop lies roughly 69 miles out from central London. Managed blocks of flats are a big part of commuter-belt property; their frame mastic often ages block-wide. Nether Wallop sits in one of the drier corners of the country, the South East. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first.
Trustees of buildings like Church of St Andrew can bring frame and external mastic into a planned maintenance list. For agents with blocks near Grateley station, 3.8 miles to the north-west of Nether Wallop, a block-wide mastic programme deals with frames, balconies and entrances in one go.
Nether Wallop is about 7 miles south-west of Andover, in Hampshire. We cover commercial sites throughout Nether Wallop. Across Hampshire, 723 places are covered, including Nether Wallop. There’s a separate page for Southampton, about 16 miles away.
Commercial sites across SO20 are covered for mastic joints. Among the streets we cover are Church Road, High Street and Church Hill, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Middle Wallop (1 mile north-west), Over Wallop (2 miles north-west), Kentsboro (2 miles north), Red Rice (4 miles north-east) and Fox (4 miles north). Bigger towns within reach include Winchester (12 miles south-east), Eastleigh (15 miles south-east), Andover (7 miles north-east), Totton (15 miles south), Chandler's Ford (13 miles south-east) and Romsey (10 miles south).
Local landmarks in Nether Wallop
Locally, jobs take us to sites close to The Old Butchers Arms, among other places. Nether Wallop’s nearest station is Grateley station, roughly 3.8 miles north-west. Green spaces nearby include Boscombe Down East.
What affects the price in Nether Wallop
To price the job, we consider:
- Distance, for remote addresses
- Whether the work must be split into stages
- The total length or number of joints
- The size and state of each joint
Pricing mastic joints depends on quantities, condition and access, plus any specification you are working to. Call for a quote.
Details that help us quote
However big the job, these details speed things up:
- Clear photos of the problem areas
- Any specification or named product
- Your programme or deadline
- Approximate linear metres or a joint schedule
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, give us a call on 01277 525 020 or email drawings and photos.
FAQs: Nether Wallop
We manage a building near Grateley station. Can you help?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Photos of each elevation help us quote accurately.
Is Nether Wallop too small for you to travel to?
No. Places such as Nether Wallop are covered as much as the big towns. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Does weather matter for sealant work?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Is it fine to apply new sealant on top of old?
No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
Do you guarantee the mastic work?
A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.
Can you send RAMS and CSCS details before starting?
Let us know your requirements: tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are CHAS accredited and a Constructionline member.
How do you reach windows on upper floors?
Access is discussed and agreed before the quote is fixed. Tell us the number of storeys and whether scaffold or other access is planned, and we will tell you how we’d approach it.
How a job runs
Occupied buildings need a little choreography. We sign and contain the area we are in, with routes through the building left open and work section by section so the rest of the building stays in use. Jobs in and around smaller places like Nether Wallop are typically planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- Dates and areas are agreed so occupiers can be told.
- Old mastic is removed and the joint faces prepared.
- Joints are resealed and tooled.
- We check the finished work and confirm the guarantee.
Before we start on site
- Agree which areas must stay open
- Make sure the joints can be reached
- Flag any permit to work we will need
Ask for a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Related advice
When something else is needed
Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be one of these:
- Substrate edges that need repairing first
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Asbestos-containing sealant, which we don’t remove
Not sure which it is? You can phone 01277 525 020 or send details through our quote form and we’ll tell you honestly before you book.
Where we work in Nether Wallop
- Communal entrances and stairwells
- Window and door perimeters on blocks
- Shopfronts below residential blocks
- Balcony and threshold joints
- Communal kitchens and washrooms
- External wall and movement joints