Living in Your Home During Building Work: What to Expect

The decision to stay in your home during a building project is the right one for most families. Moving out adds cost — rental accommodation in Hertfordshire runs at £1,800–£3,500 per month for a family home — and it does not eliminate disruption, it just relocates it. What it does do is remove you from the project, which makes communication harder and decisions slower.

Staying in means managing the disruption directly. That requires knowing what is coming. The phases below are ordered by the level of disruption they create, from the most manageable to the most intense.

Before Work Starts: Preparation Makes the Difference

The two weeks before groundworks begin are the most productive time you have. Once the project starts, your attention will be on the day-to-day reality of living alongside a building site. Use the pre-start period to prepare the house and your household.

Clear the work area completely. Everything within 3 metres of the external wall being extended needs to be moved — garden furniture, pots, stored items in the garage or outbuildings, and any planted areas near the footprint. Groundworks will damage anything left in the excavation zone.

Inside the house, move furniture away from the rear wall and cover anything in the adjacent rooms. Construction dust travels further than most people expect. Fine silica dust from masonry cutting can reach rooms two floors above the work area. Covering soft furnishings, removing rugs, and sealing internal doors with draught excluders during high-dust phases reduces cleaning time significantly.

Set up a temporary kitchen if your project involves removing or isolating the existing kitchen. A camping stove, a kettle, a microwave, and a small fridge in a spare room or garage provides basic cooking facilities during the structural opening phase. TCM gives at least one week's notice before the kitchen becomes inaccessible.

Groundworks: Noisy but Contained

Groundworks — excavation, drainage, and foundations — are the noisiest phase of the project. Mechanical excavators, concrete mixers, and compactors create sustained noise from 8:00am. The vibration from a mini-excavator working close to the house is noticeable indoors.

The disruption is external. The inside of the house is unaffected during groundworks. You can move through the property normally, and the rear garden access is restricted but the house itself is intact. Groundworks for a standard single-storey extension take 2–3 weeks.

Concrete pours happen on specific days and require the mixer lorry to access the site. TCM will give you 48 hours' notice before a pour so you can arrange parking and clear the access route.

Structure and Weathertight Shell: The Longest Phase

The structural build phase — brickwork, blockwork, roof structure, and glazing — is the longest phase and, for most families, the most manageable. The work is external. The house is intact. You can see the extension taking shape, which provides a psychological boost that offsets the noise and disruption.

Scaffold is erected around the extension footprint and, for loft conversions, around the entire roof. The scaffold changes the feel of the house — it blocks light from rear-facing rooms and creates a sense of enclosure. This is temporary, but it lasts for the majority of the build programme.

Deliveries of materials — bricks, blocks, timber, roof tiles — happen throughout this phase. TCM coordinates deliveries to avoid multiple lorries arriving on the same day and to maintain access to the property. A dedicated site manager is on site every day and manages all deliveries and subcontractor access.

The Structural Opening: The Most Disruptive Three Days

The structural opening phase is when the rear wall of the existing house is removed to connect the extension to the old space. For most families, this is the peak disruption point of the entire project. It lasts 3–5 days.

The sequence is: temporary propping of the wall above the opening, installation of the structural steel beam (RSJ or UC section), removal of the masonry below the beam, and making good the opening. The steel beam is typically craned or manually lifted into position in a single morning. The masonry removal generates significant dust and noise.

During this phase, the kitchen or rear reception room is inaccessible. The temporary kitchen arrangement you set up before the project started becomes necessary here. The room is sealed with temporary hoarding to contain dust, and the external opening is covered with heavy-duty polythene until the beam is installed and the structural integrity is confirmed.

TCM completes the external shell of the extension — roof on, windows and doors in — before opening up the connection. This means the opening phase happens into a finished, weathertight space rather than an open building site. The disruption is concentrated and predictable rather than extended and uncertain.

First Fix and Services: Quieter but Pervasive

First fix — electrical cabling, plumbing pipework, underfloor heating — is quieter than the structural phases but more pervasive. Electricians and plumbers work throughout the extension and, where the project involves upgrading the consumer unit or connecting to the existing heating system, inside the existing house as well.

Expect the electricity to be isolated for 2–4 hours during consumer unit upgrades. TCM schedules this during the day and gives 48 hours' notice. The same applies to water isolation during plumbing connections — typically 2–3 hours.

If underfloor heating is being installed, the screed pour happens at the end of first fix. Screed lorries arrive early in the morning and the pour takes 3–6 hours depending on the floor area. The screed needs 4–6 weeks to cure before floor finishes are laid, so the extension floor will be bare concrete during this period.

Plastering and Drying: The Waiting Phase

Plastering is a 3–5 day phase that generates significant dust and a strong smell from the plaster itself. The extension becomes noticeably damp as the plaster dries — this is normal and not a sign of a problem. The moisture content of fresh plaster is high, and the drying process takes 2–4 weeks depending on ventilation and temperature.

During the drying period, the extension is not usable. TCM uses this time to complete external works — pointing, drainage connections, and any landscaping within scope. The house feels quieter during this phase, which many families find welcome after the intensity of the structural phases.

Ventilating the extension during drying accelerates the process. Opening windows and running a dehumidifier reduces drying time by 30–40%. TCM leaves the extension ventilated during this phase and monitors moisture levels before allowing decoration to begin.

Second Fix and Fit-Out: The Home Stretch

Second fix — sockets, switches, sanitary ware, kitchen installation, floor finishes, and decoration — is the phase where the extension starts to look like a finished room. The disruption level drops significantly. Work is mostly internal, quiet, and skilled.

Kitchen installation takes 2–4 days depending on the complexity of the design. During this time, the kitchen area is inaccessible again, but the temporary kitchen arrangement is needed for a shorter period than during the structural opening phase.

Decoration is the final trade. Paint smell is the main nuisance — ventilating the space during and after painting dissipates it within 24–48 hours. Water-based paints, which TCM uses as standard, have lower VOC levels than solvent-based alternatives and dry faster.

Communication During the Project

The single most effective way to manage the experience of living alongside a building project is consistent communication with your site manager. TCM assigns a dedicated site manager to every project. They are on site every day, available by phone and WhatsApp, and provide a weekly progress update every Friday.

Before any phase that will cause significant disruption — structural opening, electricity isolation, water isolation, concrete pour — TCM gives a minimum of 48 hours' notice. For the structural opening phase, notice is given one week in advance.

If something is not right — a trade has not turned up, a delivery has been delayed, a decision is needed — the site manager is the first point of contact. Raising issues early, before they affect the programme, is the most effective way to keep the project on track.

Disruption Level by Phase

Frequently Asked Questions