November 11, 2026 · 7 min read · Networking
Builder-grade network in a new house: what to replace first?
The usual order of work, what a builder-grade network tends to contain, and which parts of it are worth keeping.
The short answer. Replace the router and the Wi-Fi first, because that is where a builder-grade network most often falls short. Next come the switch and the rack, and last the cabling in the walls, which you mostly keep and check. IntegrateIT, an Overland Park, Kansas integrator serving the Kansas City metro on both sides of the state line, works in that order. A technician confirms each layer on site before anything is swapped.
A new house usually arrives with a network that was put in to pass inspection and get the internet turned on. It was not designed around how your household will use it. The good news is that the expensive part, the cable in the walls, is often fine. The part that disappoints is usually the box in the closet.
What “builder-grade” usually means
It varies house to house, so treat this as a typical picture and not a rule. Often there is a single combined box from the internet provider that is the modem, the router and the Wi-Fi at once. It sits where the line enters the house, frequently a basement, a utility closet or a garage wall. A few network cables may run to rooms. Sometimes a small unmanaged switch fans them out. Sometimes a second or third wireless box has been added to the corners of the house to stretch the signal.
None of that is wrong in a small house. It stops working well when the house is large, the walls are dense, the lower level is a walkout, or the family leans on the network for video calls, streaming and a house full of smart devices.
First: the router and the Wi-Fi
The router is the part of the network that decides where traffic goes, hands out addresses and acts as the firewall. The access points are the radios that carry Wi-Fi. A provider’s all-in-one gateway does both jobs, and it does the radio job from wherever the line happens to enter. A closet in a corner of a basement is a poor place to broadcast Wi-Fi to three floors.
The usual fix has two parts. A separate router sits in the rack and does the routing. Wired access points go on ceilings and walls, placed from a plan of the house, each fed by a network cable back to the rack. The reasoning for wired over mesh is in our article on mesh Wi-Fi versus wired access points, and the foundation behind it is in the smart home networking guide.
This is first because it is what your family will notice. A new router and well-placed access points change the daily experience. A new switch on its own does not.
Second: the switch and the rack
Every cable in the house ends at a switch, and the switch is what lets the router, the access points, the cameras and the TV rooms talk to each other. Check three things. Are there enough ports for every run in the house, with room to add? Can the switch supply Power over Ethernet, which sends power and data down one cable so an access point or a camera needs no outlet nearby? Can it be managed, so the network can be seen, monitored and changed without walking to the closet?
The rack matters as much as the switch. Equipment that is stacked on a shelf, plugged into a power strip and tucked in a warm closet is a repeat service call waiting to happen. A proper enclosure or rack, clean power, airflow and a battery backup so a brief outage does not reset the network are all part of the second step. Our network rack page covers what that build involves.
Third: check the cabling before you trust it
The cable in the walls is the part you keep, so it is the part to verify rather than replace. A technician looks for a short list of things:
- Every run lands where it should. Each wall jack and ceiling location is labeled and ends at the rack, not in a junction box in the attic.
- Each run tests good. A cable tester checks the wiring of each run. A cable that looks fine and tests badly is common after a hurried rough-in.
- The cable is the right kind. The jacket is printed with its category, and the technician reads it. Older or lower-grade cable limits what a run can carry.
- The places that need a cable have one. A ceiling where an access point should go, a corner where a camera will mount, a spot behind the TV.
Missing runs are far easier to add before the drywall is finished, which is why the pre-wire checklist is worth reading if your house is not closed in yet. In a finished house, adding a run is still possible but takes more planning.
What to keep and what to replace
| Part | Usual call | Why |
|---|---|---|
| Provider all-in-one gateway as the Wi-Fi source | Replace | Radios belong on ceilings, not in the closet where the line enters. |
| Wireless extenders chained to the gateway | Replace | Each hop adds delay, and a wired access point removes the need. |
| Cabling that tests good and is labeled | Keep | It is the expensive part and it lasts. |
| Unmanaged switch with too few ports | Replace | You want room to grow, Power over Ethernet and visibility. |
| A rack or enclosure with room and airflow | Keep | Fix the power and the labeling instead. |
These are starting points. A technician confirms each one on site, because a gateway or a switch that suits one house is wrong for the next.
What not to do first
Do not start by buying a faster internet plan. Speed into the house is not the same as a good signal in the bedroom, and you may not need the biggest plan at all. Do not start by buying the largest consumer router either. One powerful radio in one closet still has the same walls to get through.
Before anyone replaces anything, ask the builder for the low-voltage as-builts and any wiring labels, and ask where the provider line enters. That paper tells a technician where to look first.
Your next step
Start with a site walk. We look at the router, the switch, the rack and the cable runs, test what is there, and tell you what is worth keeping before a proposal is written. The whole-home Wi-Fi service page sets out how we design the network, and plan a site walk gets it on the calendar.
About IntegrateIT. We have integrated hundreds of homes across the Kansas City metro since 2021, and work across the Midwest and South Florida by scheduled trips. Our showroom and design center at 15108 Glenwood Ave, Overland Park, is open by appointment. Control4 Platinum Dealer with a Control4 Certified Showroom · Lutron Certified Dealer, HomeWorks Certified and Ketra Certified · Josh.ai dealer.
Daniel Alon, co-founder, IntegrateIT. Overland Park, KS. November 2026.
Further reading
Where to go next if this article gave you the framework but you want the brand- or install-specific depth.
- Article: mesh Wi-Fi versus wired access pointsWhy a wireless hop costs throughput and when mesh still wins.→
- Article: smart home networking guideThe foundation under every other system in the house.→
- Article: smart home pre-wire checklistWhat to put in the walls before the drywall closes.→
- Article: do you need 2-gig internet at homeSpeed into the house versus signal inside it.→
- Service: whole-home Wi-Fi · Kansas CityEngineered Wi-Fi for large homes.→
- Service: network rack buildThe enclosure, power and patching behind the network.→
- Service: new-construction low voltageCabling planned before the walls close.→
New house, builder’s network?
Plan a site walk. We test what is there and tell you what to keep before you spend anything.
Questions
Questions we hear
What should I replace first on a builder-grade network?
The router and the Wi-Fi access points, in most houses. They decide how the network feels every day. After that the switch and the rack, then a check of the cabling. A technician confirms the order on site, because a house with poor cabling may need that looked at sooner.
Can I keep the cabling the builder installed?
Often, yes, once it tests good. A cable tester checks each run, and the printed category on the jacket tells you what the cable is. Runs that are unlabeled, untested or missing in key locations are the ones that need attention.
Is the provider’s all-in-one gateway good enough for a large house?
It can be enough for a small one. In a large house the usual problem is that it broadcasts Wi-Fi from wherever the line enters, which may be a corner of the basement. A separate router with wired access points placed from a plan covers the house more evenly.
Do I need to rewire the house to fix the Wi-Fi?
Not usually. Many houses have cable already, and access points can use it. Where a ceiling location has no cable, adding one is easier before the walls are closed, and still possible after with some planning.
Should I buy a mesh system to start?
Mesh can be a reasonable stopgap in a small or awkward house, and our article on mesh and wired access points covers the cases where it wins. In a large new house, wired access points are the usual better answer.
Does IntegrateIT work on a network it did not build?
Yes. We look at what is in the house, document it and tell you what to keep. Call or text (913) 804-7575, or plan a site walk on this site.
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