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*The Angi rating for Earthquake Retrofitting companies in Addison, VT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Earthquake Retrofitting needs.

*The HomeAdvisor rating for Earthquake Retrofitting companies in Addison, VT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Earthquake Retrofitting needs.

Last update on December 20, 2025

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DELPHIA EXCAVATING

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DELPHIA EXCAVATING

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39 years of experience

~~Is Family owned and operated ~~ We do all aspects of Excavation and Property Management. Commercial, Agricultural and Residential Site work, Driveways, foundations water and sewer connections, septic systems, demolition, landscaping, Snow removal, manure pits, Pond ( cleaning and new) Landscaping, Plowing,Chain Saw Work, Sanding, Tree Removal, Stump Grading, Driveways, Lawn Care, Top Soil, Seeding & Mulching, Brush Hogging. Etc.... The list goes on and on. Also deliveries of topsoil, fill, gravel stone , sand and other aggregates We do it all, Big or small. with the best value, quality workmanship, and professional services ! Over 25 years experience. ~~ Insured ~~ Delphia Excavating LLC

~~Is Family owned and operated ~~ We do all aspects of Excavation and Property Management. Commercial, Agricultural and Residential Site work, Driveways, foundations water and sewer connections, septic systems, demolition, landscaping, Snow removal, manure pits, Pond ( cleaning and new) Landscaping, Plowing,Chain Saw Work, Sanding, Tree Removal, Stump Grading, Driveways, Lawn Care, Top Soil, Seeding & Mulching, Brush Hogging. Etc.... The list goes on and on. Also deliveries of topsoil, fill, gravel stone , sand and other aggregates We do it all, Big or small. with the best value, quality workmanship, and professional services ! Over 25 years experience. ~~ Insured ~~ Delphia Excavating LLC

Earthquake Retrofitting questions, answered by experts

Generally, the retrofitting process can take two to four weeks. Your contractor will let you know if staying in your home for the entire project is feasible. However, most people are able to remain at home. If your home is undergoing earthquake rehab, it's more likely that you'll need to leave until work is complete. Your earthquake insurance may cover boarding costs if your home is deemed unsafe.

Hearing or feeling vibrations in your house can be unsettling, but there are a few possible causes for a vibrating noise in your wall or floor. Light bulbs and fixtures, circuit breakers, loose pipes, or faulty wiring could all cause vibrations. If you’re not sure what’s causing the vibrations, you can call a contractor to assess your home and narrow down the cause.

Costs vary as much as timelines. The average earthquake retrofit costs between $3,500 and $8,700. However, homes on hillsides, large homes, and those with rooms over garages can cost up to $12,000 or more. Make sure to get a few estimates to compare the cost and services.

Almost all new buildings in California need an earthquake shut-off valve. The requirements for an earthquake gas shut-off valve (and who can install it) depend on where you live. For example, according to the Los Angeles Municipal Code, you’re required to hire a licensed contractor to install one whenever you build, sell, or renovate a home. Check with your local building department for your city’s laws on installing, permitting, and inspecting earthquake shut-off valves.

First, you can expect the project to be loud. If you have pets, you might want to take them to a friend's house during the day so they are not disturbed by any of the loud noises. In addition, you’ll need to provide the retrofit team access to areas of the house that will need to be worked on, meaning you’ll need to relocate personal items, clear clutter, and make pathways for the crew. Once the project is complete, a local building inspector will conduct a final inspection to ensure that the retrofitting is up to code.

The Addison, VT homeowners’ guide to earthquake retrofitting services

From average costs to expert advice, get all the answers you need to get your job done.

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