Byggruppen shares budget guide for Danish home renovations

Byggruppen Totalentreprise ApS has published a guide aimed at helping Danish homeowners set realistic renovation budgets and avoid overruns, with a focus on older homes, electrical work and bathroom remodels. The advice stresses planning, contingency funds and doing hidden installation work before cosmetic upgrades.

Why it matters: - Renovation costs can rise fast in older Danish homes when hidden damage, plan changes and rework appear mid-project. - The guide is meant to help homeowners stay in control of total project costs before walls, floors and fixtures are opened up. - For bathroom and electrical projects, the order of work can determine whether a renovation stays on budget or turns into a costly rebuild.

What happened: - Byggruppen Totalentreprise ApS released a new guide for Danish homeowners planning renovations. - The guide focuses on older homes, electrical upgrades and bathroom renovations. - The publication dates to Nov. 5, 2026. - Byggruppen says budget overruns usually come from three sources: hidden damage, changes after work has started and work that has to be redone.

The details: - The company recommends listing every planned task and dividing it into necessary repairs, functional upgrades and cosmetic improvements. - Necessary repairs include safety issues, water damage and failing installations. - Cosmetic upgrades such as new surfaces can be delayed if money gets tight. - Byggruppen advises setting aside 10% to 20% of the total budget as a contingency fund. - Older Danish homes can hide damaged pipes, moisture problems and outdated electrical systems. - Budgeting should also cover waste removal, transport, permits and temporary housing on larger projects. - The guide recommends fixed-price, clearly defined work instead of hourly billing, so homeowners know the total cost from the start. - Homeowners should check whether any parts of a project qualify for the green handyman tax deduction, which applies to labor on green home improvements from 2025 to 2027. - In 2026, each adult can deduct up to 9,000 kr., but most ordinary renovation work is not eligible. - Electrical, plumbing, drainage and moisture protection work should come before visible finishes. - Danish rules allow homeowners to do some simple electrical tasks themselves, such as replacing an existing socket or switch, if Safety Technology Authority requirements are met. - New circuits, extra sockets, changes to the electrical panel and most new installations must be done by a licensed electrician. - Byggruppen recommends bringing in an electrician during planning, before walls and ceilings are closed. - Bathroom renovations often involve plumbing, drainage, waterproofing, ventilation and electrical work in a small area. - A full bathroom renovation usually means replacing those systems, not just updating surfaces. - Keeping the existing layout is one of the easiest ways to save money because moving a toilet, shower or sink requires changes to water supply and drainage. - Waterproofing is the area where cutting costs makes the least sense, according to the guide. - Denmark's building code, BR18, sets requirements for wet rooms, including watertight floors, joints and pipe penetrations. - The guide also highlights ventilation, especially in older apartment buildings where ventilation channels may be shared. - Homeowners should contact the municipality before changing shared ventilation channels. - Delays can increase costs because materials may be unavailable, hidden damage may need repair and trades must work in the right order. - Byggruppen says the sequence should be plumbing and electricity first, then waterproofing, tiles and finishing work.

Between the lines: - The guide is framed as cost control advice, but it also reflects a common renovation risk: the most expensive mistakes are often the ones hidden behind finished surfaces. - The emphasis on fixed pricing, contingencies and sequencing suggests Byggruppen is pushing homeowners toward more disciplined project management, not just cheaper materials. - The repeated focus on bathrooms and electrical systems signals where renovation budgets are most vulnerable in older housing stock.

What's next: - Homeowners planning renovations in 2026 and beyond can use the guide to set budgets, schedule work and decide which upgrades can wait. - Projects that involve electricity, waterproofing or ventilation are likely to require early professional input and closer coordination with local rules. - Byggruppen says a realistic timeline is part of a realistic budget, especially when one team coordinates all stages.

The bottom line: - Byggruppen's message is simple: spend first on hidden systems and essential repairs, not cosmetic upgrades, if the goal is to keep a renovation on budget.