Some remodeling projects go on for weeks and make a mess of your home life. Here's what you need to know to survive.

By Lisa Kaplan Gordon

Renovations can take weeks — and sometimes months. That means endless days of subcontractors traipsing through your home, noisy tools, and major dust. Even some minor projects can disrupt your daily routine. Before you begin to remodel, know what's in store for you and your family.

We've highlighted nine common remodeling projects that homeowners are likely to undertake — projects that require professional contractors and that take at least one week to complete.

bathroomWe also talked with veteran remodeler Paul Sullivan, who has renovated homes for 34 years and is president of The Sullivan Company in Newton, Mass.

Sullivan helped us rate each project on a "disruption scale" of 1 to 10, with 1 being the least disruptive to your everyday home life and 10 the most. If your project reaches a 10, consider getting a hotel room for the duration.

Refinishing Hardwood Floors
National average cost: $1.50 to $4 per square foot
Time: 2 to 14 days

What's involved: Sanding, staining, and sealing wood floors.

Disruption scale: 9 Whether you're refinishing one floor or an entire house, the process involves a world of hurt. You have to move furniture and cover surfaces to protect from wood dust, which disrupts the flow of family life. And if you use oil-based sealants, you'll have to live somewhere else to avoid breathing VOC fumes. Plus, you won't be able to walk on floors for at least two days after the last coat of sealant is applied.

Bathroom Remodel
National average cost: $16,724
Time: 2 to 3 weeks

What's involved: Turning your outdated bathroom into a dream spa includes updating plumbing fixtures, installing ceramic tile around a porcelain-on-steel tub, replacing an old toilet with a low-flow, comfort-height model, and installing ceramic floor tiles and solid-surface vanity counters.

Disruption scale: 7 to 10 If you're remodeling your only bathroom, expect major disruption of your personal hygiene routine. You'll have less pain if you have more than one bathroom in the house. Even then, you'll suffer water outages during plumbing updates. And if you're remodeling a master bath, you must put up with workman tromping through your bedroom.

Major Kitchen Remodel
National average cost: $56,768
Time: 8 to 12 weeks

What's involved: Replacing cabinets, installing a kitchen island and countertops, replacing appliances, adding lighting, and changing flooring.

Disruption scale: 8 Kitchens are the heart of the home, so when they're down, you'll eat out more, wash coffee cups in bathroom sinks, and hold family meetings in the family room where your microwave and fridge now live. To ease the disruption, your contractor can easily set up a construction sink somewhere by running a couple of hoses from existing kitchen plumbing through the dust wall to a make-shift kitchen in an adjacent room.

Minor Kitchen Remodel
National average cost: $19,226
Time: 1 to 2 weeks

What's involved: Replacing cabinet box fronts, adding new hardware, updating appliances, sinks, and faucets, and installing new flooring.

Disruption scale: 5 Kitchen facelifts are less disruptive merely because they're finished faster than major remodels. You're mainly pulling and replacing, so plumbing and electrical can stay put, and you'll still have access to your fridge until the new one arrives.

Basement Remodel
National average cost: $62,834
Time: 4 to 6 weeks

What's involved: Finishing the lower level of a house to create an entertaining area, wet bar, bathroom, and egress windows required by code.

Disruption scale: 2 Seems counter-intuitive, because turning unfinished space into extra living space requires all the finishes of a new addition — plumbing, electrical, flooring, walling, and insulation. But the good news: Work is confined to a part of the house you rarely use. Contractors can enter and exit through the basement door (if you have one), and noise and dust are easily confined. The biggest disruptions come from periodic electrical and plumbing outages.

Roof Replacement (Asphalt Shingles)
National average cost: $19,528
Time: 1 week

What's involved: Removing and replacing roofing moisture barriers, flashing, and shingles.

Disruption scale: 1 Replacing your roof is one of the least inconvenient remodeling projects you can do. You'll have to put up with some banging, move your cars away from the house, and keep dogs and kids out of the yard during the demolition phase. Roofers will cover the ground around the job to corral debris; and after the job, they'll go over your yard with a magnetic roller to pick up stray nails.

Siding Replacement (Vinyl)
National average cost: $12,013
Time: 1 to 2 weeks

What's involved: Removing and replacing old vinyl siding with new vinyl siding.

Disruption scale: 3 You'll endure lots of banging around your house as the new siding goes up. If noise bothers you, stick in your earbuds and listen to something soothing. Even though contractors will cover the area around the house, expect some debris to litter the yard. Keep curious kids and pets inside while work is being done to avoid accidents.

Two-Story Addition
National average cost: $161,925
Time: 16 to 20 weeks

What's involved: Framing, adding utilities, and finishing a 24-foot-by-16-foot wing including a family room and second-floor bedroom and bathroom.

Disruption scale: 4 Building an addition is like constructing an entire house attached to your house. But oddly, it's life as usual until the very end, when you break through the wall that connects the two structures. Expect a lot of noise and trucks in your driveway throughout the project. The last one to two weeks, when you connect the structures, you'll have to put up with some commotion — demolition, carpentry, drywall installation, and painting. Figure you'll have a major cleanup job throughout the house when the construction is over.

Visit HouseLogic.com for more articles like this. Reprinted from HouseLogic.com with permission of the NATIONAL ASSOCIATION OF REALTORS®.

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